GE Industrial Solutions Record Plus FG600 SMR2 Modbus - Manual (Page 7)

SMR2 Modbus User Manual
4
64h 03h 0Bh
C2h
00h
03h CRCl
CRCh
Response: (register contents: 3010 = 022Bh, 3010 = 0000h,
3012 = 0066h)
Data (n bytes) Slave
Addres
s
(1byte)
Functio
n Code
(1 byte)
Numbe
r of
Bytes
(1byte) Byte1 Byte2
-------
Byte n
CRC
(2
bytes
)
64h 03h 06h 02h 2Bh 00h
00h 00h 66h
CRCl
CRC
h
Read Input Registers (Function Code 04)
Use this command to read dynamic value or event
registers. Read the registers 1058 – 1060 from device
100:
Query:
Data (n bytes) Slave
Address
(1 byte)
Function
Code
(1 byte)
Start
Address
(2 bytes)
No. Of
Registers
(2 bytes)
CRC
(2 bytes)
64h 04h 04h 22h 00h 03h CRCl
CRCh
Response: (register content: 1058 = FFFFh, 1059 = A01Ah,
1060 11B1h)
Data (n bytes)
Slave
Addres
s
(1
byte)
Function
Code
(1 byte)
Number
of Bytes
(1 byte)
Byte1 Byte2
-------
Byte n
CRC
(2
bytes)
64h 04h 06h FFh FFh A0h
1Ah 11h B1h
CRCl
CRCh
Force Single Coil (Function Code 05)
Use this command to perform remote control. This
command sets a single coil to enter ON or OFF.
Force coil 4 of device 100 ON (FF00h force on, 0000h
force off)
Query:
Data (n bytes) Slave
Address
(1 byte)
Function
Code
(1 byte)
Coil
Address
(2 bytes)
Data
(2
bytes)
CRC
(2 bytes)
64h 05h 00h 04h FFh 00h CRCl
CRCh
Response: (echo query message)
Data (n bytes) Slave
Address
(1 byte)
Function
Code
(1 byte)
Coil
Address
(2 bytes)
Data
(2
bytes)
CRC
(2 bytes)
64h 05h 00h 04h FFh 00h CRCl
CRCh
Preset Single Register (Function Code 06)
Use this command to write to a register. This presets a
value into a single holding register.
Preset register 0002 to 00 03 hex in slave device 17.
Query:
Data (n bytes) Slave
Address
(1 byte)
Function
Code
(1 byte)
Register
Address
(2 bytes)
No. of
Registers
(2 bytes)
CRC
(2 bytes)
11h 06h 00h 02h 00h 03h CRCl
CRCh
Response (echo query message)
Data (n bytes) Slave
Address
(1 byte)
Function
Code
(1 byte)
Register
Address
(2 bytes)
No. of
Registers
(2
bytes)
CRC
(2 bytes)
11h 06h 00h 02h 00h 03h CRCl
CRCh
Retransmit Last Message (Function Code 56)
Query:
Slave Address
(1 byte)
Function Code
(1 byte)
CRC
(2 bytes)
64h 38h CRCl CRCh
Response
Slave Function Data (n bytes) CRC