bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 545 -c 2 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 545, count = 2
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
<01><03><04><00><00><00><64><FB><D8>
[545]:  0
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
<01><03><04><00><00><00><64><FB><D8>
[545]:  0
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
ERROR Connection timed out: select
Read output (holding) register failed: Connection timed out
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
<01><03><04><00><00><00><64><FB><D8>
[545]:  0
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
<01><03><04><00><00><00><64><FB><D8>
[545]:  0
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
<01><03><04><00><00><00><64><FB><D8>
[545]:  0
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
<01><03><04><00><00><00><64><FB><D8>
[545]:  0
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
<01><03><04><00><00><00><64><FB><D8>
[545]:  0
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][02][C4][79]
Waiting for a confirmation...
^C--- /dev/ttyUSB0 poll statistics ---
9 frames transmitted, 7 received, 1 errors, 22.2% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4:int -r 514 /dev/ttyUSB0 100 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=100
Int[0]=100
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 32-bit integer (little endian), output (holding) register table

[01][10][02][01][00][02][04][00][64][00][00][6A][DC]
Waiting for a confirmation...
<01><0A><02><01><00>
ERROR CRC received 0x1 != CRC calculated 0x61A7
Write output (holding) register failed: Invalid CRC

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 514 /dev/ttyUSB0 100 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=100
Word[0]=0x64
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][01][00][64][D8][59]
Waiting for a confirmation...
<01><06><02><01><00><64><D8><59>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
^C--- /dev/ttyUSB0 poll statistics ---
3 frames transmitted, 3 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
^C--- /dev/ttyUSB0 poll statistics ---
12 frames transmitted, 12 received, 0 errors, 0.0% frame loss

everything was closed.
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 514 /dev/ttyUSB0 125 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=125
Word[0]=0x7D
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][01][00][7D][19][93]
Waiting for a confirmation...
ERROR Connection timed out: select
Write output (holding) register failed: Connection timed out

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 514 /dev/ttyUSB0 125 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=125
Word[0]=0x7D
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][01][00][7D][19][93]
Waiting for a confirmation...
ERROR Connection timed out: select
Write output (holding) register failed: Connection timed out

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 545 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 545, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][01][84][78]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[545]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][20][00][01][84][78]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[545]:  0
^C--- /dev/ttyUSB0 poll statistics ---
2 frames transmitted, 2 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 546 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 546, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<01><03><02><00><64><B9><AF>
[546]:  100
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<01><03><02><00><64><B9><AF>
[546]:  100
^C--- /dev/ttyUSB0 poll statistics ---
2 frames transmitted, 2 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4:int -r 514 /dev/ttyUSB0 1000
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 32-bit integer (little endian), output (holding) register table

Write output (holding) register failed: Invalid CRC

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 546 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 546, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<01><03><02><03><E8><B8><FA>
[546]:  1000
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<01><83><02><03><E8>
ERROR CRC received 0xE803 != CRC calculated 0xF1C0
Read output (holding) register failed: Invalid CRC
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<B8><FA><01><03><02>
ERROR CRC received 0x203 != CRC calculated 0x8572
Read output (holding) register failed: Invalid CRC
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<03><E8><B8><FA><01>
ERROR CRC received 0x1FA != CRC calculated 0xB2CF
Read output (holding) register failed: Invalid CRC
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<03><02><03><E8><B8><FA><01><03>
ERROR CRC received 0x301 != CRC calculated 0xDB0B
Read output (holding) register failed: Invalid CRC
^C--- /dev/ttyUSB0 poll statistics ---
5 frames transmitted, 1 received, 4 errors, 80.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 514 /dev/ttyUSB0 100
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 514 /dev/ttyUSB0 100 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=100
Word[0]=0x64
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][01][00][64][D8][59]
Waiting for a confirmation...
<01><06><02><01><00><64><D8><59>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 514 /dev/ttyUSB0 125 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=125
Word[0]=0x7D
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 514, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][01][00][7D][19][93]
Waiting for a confirmation...
<01><06><02><01><00><7D><19><93>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 546 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 546, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<01><03><02><00><7D><78><65>
[546]:  125
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][21][00][01][D5][B8]
Waiting for a confirmation...
<01><03><02><00><7D><78><65>
[546]:  125
^C--- /dev/ttyUSB0 poll statistics ---
2 frames transmitted, 2 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 1 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=1
Word[0]=0x1
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][01][49][B2]
Waiting for a confirmation...
<01><06><02><00><00><01><49><B2>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 3 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=3
Word[0]=0x3
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][03][C8][73]
Waiting for a confirmation...
<01><06><02><00><00><03><C8><73>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
ERROR Connection timed out: select
Write output (holding) register failed: Connection timed out

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 2 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=2
Word[0]=0x2
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][02][09][B3]
Waiting for a confirmation...
<01><06><02><00><00><02><09><B3>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
^C--- /dev/ttyUSB0 poll statistics ---
2 frames transmitted, 2 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 2 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=2
Word[0]=0x2
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][02][09][B3]
Waiting for a confirmation...
<01><06><02><00><00><02><09><B3>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><09><78><42>
[529]:  9
^C--- /dev/ttyUSB0 poll statistics ---
3 frames transmitted, 3 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
^C--- /dev/ttyUSB0 poll statistics ---
3 frames transmitted, 3 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 4 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=4
Word[0]=0x4
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][04][89][B1]
Waiting for a confirmation...
ERROR Connection timed out: select
Write output (holding) register failed: Connection timed out

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 4 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=4
Word[0]=0x4
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][04][89][B1]
Waiting for a confirmation...
<01><06><02><00><00><04><89><B1>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
ERROR Connection timed out: select
Read output (holding) register failed: Connection timed out
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><0D><79><81>
[529]:  13
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><0D><79><81>
[529]:  13
^C--- /dev/ttyUSB0 poll statistics ---
3 frames transmitted, 2 received, 1 errors, 33.3% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
ERROR Connection timed out: select
Write output (holding) register failed: Connection timed out

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 1 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=1
Word[0]=0x1
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][01][49][B2]
Waiting for a confirmation...
<01><06><02><00><00><01><49><B2>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><0D><79><81>
[529]:  13
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><0D><79><81>
[529]:  13
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><0D><79><81>
[529]:  13
^C--- /dev/ttyUSB0 poll statistics ---
3 frames transmitted, 3 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><70>
ERROR CRC received 0x7088 != CRC calculated 0x7288
Write output (holding) register failed: Invalid CRC

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
^C--- /dev/ttyUSB0 poll statistics ---
2 frames transmitted, 2 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 529 -c 1 /dev/ttyUSB0 -v
debug enabled
Set device=/dev/ttyUSB0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 529, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><04><B9><87>
[529]:  4
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
-- Polling slave 1... Ctrl-C to stop)
[01][03][02][10][00][01][84][77]
Waiting for a confirmation...
<01><03><02><00><00><B8><44>
[529]:  0
^C--- /dev/ttyUSB0 poll statistics ---
16 frames transmitted, 16 received, 0 errors, 0.0% frame loss

everything was closed.
Have a nice day !
bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 2 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=2
Word[0]=0x2
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][02][09][B3]
Waiting for a confirmation...
<01><06><02><00><00><02><09><B3>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 8 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=8
Word[0]=0x8
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][08][89][B4]
Waiting for a confirmation...
ERROR Connection timed out: select
Write output (holding) register failed: Connection timed out

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 8 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=8
Word[0]=0x8
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][08][89][B4]
Waiting for a confirmation...
<01><06><02><00><00><08><89><B4>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 16 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=16
Word[0]=0x10
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][10][89][BE]
Waiting for a confirmation...
<01><06><02><00><00><10><89><BE>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 16 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=16
Word[0]=0x10
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][10][89][BE]
Waiting for a confirmation...
<01><06><02><00><00><10><89><BE>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 16 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=16
Word[0]=0x10
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][10][89][BE]
Waiting for a confirmation...
<01><06><02><00><00><10><89><BE>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 16 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=16
Word[0]=0x10
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][10][89][BE]
Waiting for a confirmation...
<01><06><02><00><00><10><89><BE>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 16 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=16
Word[0]=0x10
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][10][89][BE]
Waiting for a confirmation...
<01><06><02><00><00><10><89><BE>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 16 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=16
Word[0]=0x10
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][10][89][BE]
Waiting for a confirmation...
<01><06><02><00><00><10><89><BE>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 0 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=0
Word[0]=0x0
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][00][88][72]
Waiting for a confirmation...
<01><06><02><00><00><00><88><72>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 16 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=16
Word[0]=0x10
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][10][89][BE]
Waiting for a confirmation...
<01><06><02><00><00><10><89><BE>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 4 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=4
Word[0]=0x4
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][04][89][B1]
Waiting for a confirmation...
<01><06><02><00><00><04><89><B1>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 8 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=8
Word[0]=0x8
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][08][89][B4]
Waiting for a confirmation...
<01><06><02><00><00><08><88><B4>
ERROR CRC received 0xB488 != CRC calculated 0xB489
Write output (holding) register failed: Invalid CRC

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 2 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=2
Word[0]=0x2
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][02][09][B3]
Waiting for a confirmation...
<01><06><02><00><00><02><09><B3>
Written 1 references.

bartool@debian:~/Public/qmod/qModMaster-code-0.5.2-3$ mbpoll -m rtu -a 1 -b 9600 -P none -t 4 -r 513 /dev/ttyUSB0 8 -v
debug enabled
Set device=/dev/ttyUSB0
1 write data have been found
Set data=8
Word[0]=0x8
mbpoll 1.0-0 - ModBus(R) Master Simulator
Copyright (c) 2015-2023 Pascal JEAN, https://github.com/epsilonrt/mbpoll
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type 'mbpoll -w' for details.

Opening /dev/ttyUSB0 at 9600 bauds (N, 8, 1)
Set response timeout to 1 sec, 0 us
Protocol configuration: ModBus RTU
Slave configuration...: address = [1]
                        start reference = 513, count = 1
Communication.........: /dev/ttyUSB0,       9600-8N1
                        t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

[01][06][02][00][00][08][89][B4]
Waiting for a confirmation...
<01><06><02><00><00><08><89><B4>
Written 1 references.