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6.10 Communication function parameters

F163	Setting range	Unit	Ex-factory value	Alteration
Communication address	0-250	1	1	X

When RS-485 communication port control is set for the inverter, the position of each inverter shall be set via a parameter.

0: No communication function 
01-250: Position of inverter

F164	Setting range	Unit	Ex-factory value	Alteration
Communication transmission speed	0-3	1	2	X

0:4800 bit/s 1:9600 bit/s 2:19200 bit/s 3:38400 bit/s

F165	Setting range	Unit	Ex-factory value	Alteration
Communication data mode	0-5	1	3	X

0: 8N1 For ASCII 1: 8E1 For ASCII 2: 8O1 For ASCII
3: 8N1 For RTU 4: 8E1 For RTU 5: 8O1 For RTU

example:

1. 8N1 For ASCII F165=0 or 8N1 For RTU F165=3<br>
2. 8E1 For ASCII F165=1 or 8E1 For RTU F165=4<br>
3. 8O1 For ASCII F165=2 or 8O1 For RTU F165=5

F166-F168	Reserved

F169	Setting range	Unit	Ex-factory value	Alteration
Given decimal point of communication frequency	0: Communication 0201H egister adopts 1 bit decimal 1: Communication 0201H register adopts 2 bit decimal	1	0	X

F169 sets the decimal point position of the given communication frequency (0201h register)

Summary

(1) D100 series converters support RTU mode in standard Modbus protocol.

RTU mode: Each 8bit data is composed of two hexadecimal characters of 4bit, for example: 64H (hex).

	RTU Mode
Start bit	3.5 bits
Slave address	1 bit
Modbus function NO.	1 bit
Data	n bit
CHECK	CRC16（2 bit）
End bit	3.5 bits

Inverter parameters communication address indicate hexadecimal system, for example communication address of F100 is 0064H. Communication specific variables: including communication specific instruction variables and communication specific state variables, address starting from 0200H. Save of communication variables: rewrite inverter parameters (for example F100) to be stored in EEPROM.Still save after power failure. But parameters cannot be rewritten frequently, otherwise EEPROM memory may be damaged. Rewriting communication-specific variables (variables after 0200H) only modifies values in RAM. Do not save after power failure, it allow rewriting frequently. Data Types in Communication: because of data is hexadecimal integer, the smallest unit can be seen from the decimal point position of the parameters in the function table. For example, the minimum unit of F003 is 0.1Hz. Therefore, according to Modbus protocol, communication transmission 300 represents 30.0Hz. Rewritten, of F013 and F172 parameters can only by 06H function, not support by 10H function, and there is no response frame.

Supported Modbus Function

Parameter	Function	Specification
01H	Read parameter address status	Read from 1 to 32
03H	Read holding register	Read from 1~20. Read all parameters,communication-specific variables
04H	Read input register	Read from 1~20.
05H	Write single parameter address	Write data FF00H，parameter address ON；write 0000H，parameter address OFF
06H	Write single holding register	All parameters and communication-specific variables can be rewritten
0FH	Write multiple parameter address	Write from 1~32. parameter address start from 0048H
10H	Write multiple holding registers	Rewritten from 1~20. All parameters and communication-specific variables can be rewritten

(1) Communication Address table

1. parameter address address table

Modbus mode include：01H (read parameter address status), 05H (write single parameter address), 0FH (write multiple parameter address)

parameter address	Name	R/W	Specification
0000	Operation	R	0–Stop 1–Operating
0001	JOG	R	0–Invalid 1–JOG
0002	Forward/reverse	R	0–Forward 1–Reverse
0003	In operation	R	0–Stop 1–In operation
0004	In jogging	R	0–Invalid 1–In jogging
0005	In forward/reverse rotation	R	0–In forward rotation 1–In reverse rotation
0006	In braking	R	0–Invalid 1–In braking
0007	Frequency tracking	R	0–Invalid 1–Frequency tracking
0008-0047	reserved
0048	Operation	W	0000—Invalid FF00 (or 100， bit8 set 1)-Valid
0049	Forward	W	0000—Invalid FF00-Valid
004A	Reverse	W	0000—Invalid FF00-Valid
004B	Stop	W	0000—Invalid FF00-Valid
004C	Forward/reverse switch	W	0000—Invalid FF00-Valid
004D	JOG	W	0000—Invalid FF00-Valid
004E	JOG Forward	W	0000—Invalid FF00-Valid
004F	JOG Reverse	W	0000—Invalid FF00-Valid

2. Input register address table

All address only read. Modbus function include 04H (read input register).

Fault Code table:

Address	Name
0000	Output frequency
0001	Set frequency
0002	Output current
0003	Output speed
0004	DC voltage
0005	AC voltage
0006	temperature
0007	Counter
0008	PID target value
0009	PID feedback value
000A	Current fault
000B	Total operating hours
000C	Output power
000D	X terminal state

Decimal	Fault code
64	E.OCS
80	E.oUS
88	E.LuS
92	E.oHS
96	E.oLS
100	E.oAS
104	E.oTS

Note 1: The BIT0-BIT5 in X terminal state corresponds to the X1-X6 terminal , and 1 means terminal is closed.
Note 2: The fault code suffixes S, A, d and n are four consecutive numbers, such as 65 for E.OC.A.

3. Holding register address table

Modbus functions include: 03H (read and hold register), 06H (write a single hold register), 10H (write multiple hold registers)

Definition	Address	Specification
Internal parameters	0000H～00FFH	Inverter parameter address，F000～F255
Communication Specific Instruction Variable	0200H	Main control bit，BIT0-BIT7 mapping parameter address 0048H～004FH，BIT8 virtual input terminal enable
Communication Specific Instruction Variable	0201H	Given frequency，given frequency address when F002=2
Communication Specific Instruction Variable	0202H	Virtual input terminal1，BIT0-BIT15 corresponding digital input terminal function 01-16. Digital input terminal function 1-8 already exists in the main control bit, the modification here is invalid.
Communication Specific Instruction Variable	0203H	Virtual input terminal 2, BIT0-BIT15 corresponding digital input terminal function 17-32
Communication Specific Instruction Variable	0204H	EDO，Communication control digital output terminal, BIT3 corresponding (FA, FB, FC) relay terminal
Communication Specific Instruction Variable	0205H	EAO，Communication control analog output terminal AO
Communication Specific Instruction Variable	0206H～020FH	Reserved
Communication-specific state variables, read-only	0210H	Main control bit，BIT0～BIT15 mapping parameter address 0000H～000FH
Communication-specific state variables, read-only	0211H	Digital terminal status，BIT0-BIT5 corresponding X1-X6 , BIT11 corresponding (FA, FB, FC) relay
Communication-specific state variables, read-only	0212H	Virtual Output State 1, BIT0-BIT15 corresponding to Digital Output Terminal Function 01～16.
Communication-specific state variables, read-only	0213H	Virtual output state 2, BIT0-BIT15 corresponds to digital output terminal function 17-32.
Communication-specific state variables, read-only	0214H-021FH	Reserved
Communication-specific state variables, read-only	0220H～022DH	Mapping input registers (addresses 0000H-000DH)
Communication-specific state variables, read-only	022EH	AI1. Analog input value 1（0～100.00%）
Communication-specific state variables, read-only	022FH	AI2. Analog input value 2（0～100.00%）
Communication-specific state variables, read-only	0230H	PFI. Pulse input value
Communication-specific state variables, read-only	0231H～023FH	Reserved

(1) For example

Setting No.01 inverter given frequency is 300.0Hz, Application Function Code 06H. Given frequency is communication port (F002=2)

Master command message：

	RTU Mode
Mute interval
Slave address	01H
Modbus function NO.	06H
High bit of register address	02H
Low bit of register address	01H
High bit of written data	0BH
Low bit of written data	B8H
Check	DEH (CRC low bit) F0H (CRC high bit)
END	Mute

Slave response: frequency is set to 300.0Hz, returns the same data as the master requests.

Note 1: When F002 = 2, use 06H or 10H function to rewrite frequency, address is 0201H, EPROM is not operated at this time. If the rewriting frequency is to be written to EEPROM, the F003 value needs to be rewritten.

Note 2: Calculations of check bits RTU mode adopts CRC method. The C language code of CRC16 is as follows：

unsigned char data // Indicators of information buffer
unsigned char length //Number of bytes in the information buffer
unsigned int crc_chk(unsigned char data,unsigned char length)
{
    int j;
    unsigned int reg_crc=0xffff;
    while(length--)
    {
        reg_crc^=*data++;
        for(j=0;j<8;j++)
        {
            if(reg_crc&0x01)
                reg_crc=(reg_crc>>1)^0xa001;
            else
                reg_crc=reg_crc>>1;
        }
    }
    return reg_crc;
}

Make No. 01 inverter run, function code 05H or 06H. Requirement control mode is communication port (F001=2). 0FH and 10H can also achieve this function as multi-write modes.

See the following examples for their formats. Master command message：

	Write parameter address	Write hold register
Slave address	01H	01H
Modbus function number	05H	06H
High bit of parameter address/register address	00H	02H
Low bit of parameter address/register address	48H	00H
High bit of write data	FFH	00H
Low bit of write data	00H	01H
CRC	——	——

Slave response: inverter is forward operation and returns the same data as the master requests.

Read 01 slave running status, function code 01H or 03H.

Master command message：

	Read parameter address	Read hold register
Slave address	01H	01H
Modbus function number	01H	03H
High bit of parameter address/register start address	00H	02H
Low bit of parameter address/register start address	00H	10H
Read parameter address/register quantity (high bit)	00H	00H
Read parameter address/register quantity (low bit)	08H	01H
CRC	——	——

Slave response: 09H to 00001001B，comparing with the parameter address table, it indicates that inverter on command and operating.

	Read parameter address	Read hold register
Slave address	01H	01H
Modbus function number	01H	03H
Byte number	01H	02H
Read data	09H	00H 09H
CRC	——	——

Read the operating frequency and setting frequency of No. 01 inverter, function code 04H or 03H.

Master command message:

	Read input register	Read hold register
Slave address	01H	01H
Modbus function number	04H	03H
High bit of input/hold register start address	00H	02H
Low bit of input/hold register start address	00H	20H
Read byte number(high bit)	00H	00H
Read byte number(low bit)	02H	02H
CRC	——	——

Slave response: The return content indicates that the current frequency of inverter is 0.0Hz and the set frequency is 50.0Hz.

	Read input register	Read hold register
Slave address	01H	01H
Modbus function number	04H	03H
Return byte number	04H	04H
High bit of first register content	00H	00H
Low bit of first register content	00H	00H
High bit of second register content	01H	01H
Low bit of second register content	F4H	F4H
CRC	——	——

Write 20.0s for F014, 15.0s for F015 and 10H for function code.

Master command message:


Slave address	01H
Modbus function number	10H
Start address (high bit)	00H
Start address (low bit)	0EH
Register number(high bit)	00H
Register number(low bit)	02H
Byte number	04H
High bit of first number	00H
Low bit of first register content	C8H
High bit of second register content	00H
High bit of second register content	96H
CRC	——

Slave response:


Slave address	01H
Modbus function number	10H
Start address (high bit)	00H
Start address (low bit)	0EH
Register number(high bit)	00H
Register number(low bit)	02H
CRC	——

Abnormal response frame: When the slave station cannot complete the request sent by the master station, the abnormal response frame is returned. The frame format is as follows:

1 bit
1 bit（Modbus function number+80H）
1 bit:
- 01：Modbus function number that cannot be processed
- 02：Unreasonable data address
- 03：Out-of-range data values
- 04：Operation failure (write read-only parameters, change
parameters that cannot be changed during operation, etc.)
——

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6.10 Communication function parameters

Summary

(1) Communication Address table

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