Modbus Communication In Detail; Codes Supported; Data Types - RMG USM GT400 Operating Manual

10.4 Modbus communication in detail

10.4.1

Codes supported

The ultrasonic electronics supports the following codes:
Function Code
Exception Code
10.4.2

Data types

Data type Register
float 2
text 10
intd 1
double 4
long 2
Code Description
03 Hex Read Holding Registers
06 Hex Preset Single Register
10 Hex Preset Multiple Registers
08 Hex Diagnostic
00 Hex Return Query Data
Code Description
03 Illegal Function
03 Illegal Data Address (Register nicht vorhan-
den)
03 Illegal Data Value (Register nicht beschreibbar
oder Wert falsch)
Value Byte Byte
1 2
273,15 0x93 0x33
USM 0x53 0x55
GT400
0x00 0x00
0x00 0x00
44067 0xAC 0x23
14,2740 0x13 0x58
100000 0x86 0xA0
Byte Byte Byte Byte
3 4 5 6
0x43 0x88
0x30 0x5A 0x2D 0x38
0x00 0x00 0x00 0x00
0x00 0x00
0x8A 0xCF 0x8C 0x4C
0x00 0x01
Manual USM GT400 · EN10 · May 2021
10 Operation
161
Byte Byte
7 8
0x50 0x36
0x00 0x00
0x40 0x2C