RS485 Communication for VPFlowScope M

RS485 Communication for VPFlowScope M

RS485 Communication

 

Real time value of Temperature in Celsius (204-205)

 

[RTU]  Tx:     09  03  00  CC  00  02  05  7C

 

Slave Address: 09

Function Code: 03

Starting Address: 00 CC

Quantity of Registers: 00 02

CRC: 05 7C

 

[RTU]    Rx:     09  03  04  1C  20  41  CD  84  6C

 

Slave Address: 09

Function Code: 03

Byte Count: 04

Register Values: 1C  20  41  CD 

CRC: 84  6C

 

Data format:

Function code 0x03 for reading(Holding register)

Function code 0x10 for writing (Holding register)

32-bit Floating point Little endian [CDAB]

32-bit signed Integer Little endian [CDAB]

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