Ge-industrial-solutions Record Plus FG600 SMR2 Modbus User Manual download pdf (Page 7)

SMR2 Modbus User Manual

64h

03h

0Bh

C2h

00h

03h

CRCl

CRCh

Response: (register contents: 3010 = 022Bh, 3010 = 0000h,

3012 = 0066h)

Data

(n bytes)

Slave

Addres

(1byte)

Functio

n Code

(1 byte)

Numbe

r of

Bytes

(1byte)

Byte1

Byte2

-------

Byte n

CRC

bytes

)

64h

03h

06h

02h 2Bh 00h

00h 00h 66h

CRCl

CRC

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

byte)

Function

Code

(1 byte)

Number

of Bytes

(1 byte)

Byte1

Byte2

-------

Byte n

CRC

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

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

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)

ddress

(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)

ddress

(2 bytes)

No. of

Registers

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

1 2 3 4 5 6 7 8 9 10 11 12 ... 20 21

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Ge-industrial-solutions Record Plus FG600 SMR2 Modbus User Manual Page 7

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