Table of contents
1
Introduction ........................................................................................................................................... 5
1.1
1.2
Document history ................................................................................................................ 5
1.3
Modbus RTU technology ...................................................................................................... 5
1.4
Further Information ............................................................................................................. 7
2
Safety notes ........................................................................................................................................... 9
2.1
3
Installing/mounting ............................................................................................................................. 11
3.1
MAG/MASS 6000 IP67 or 19" .............................................................................................. 12
3.2
MAG 6000 I ....................................................................................................................... 14
3.3
MASS 6000 Ex d................................................................................................................. 15
4
Connecting .......................................................................................................................................... 17
4.1
Wiring ............................................................................................................................... 18
5
System integration .............................................................................................................................. 19
5.1
Function check .................................................................................................................. 19
5.2
6
Functions codes ................................................................................................................................... 23
6.1
Modbus Commands ........................................................................................................... 23
6.2
Read coils .......................................................................................................................... 24
6.3
Read multiple registers....................................................................................................... 26
6.4
Write single coil ................................................................................................................. 28
6.5
Write multiple registers ...................................................................................................... 30
6.6
Report slave ID command................................................................................................... 32
6.7
Exception handlng ............................................................................................................. 33
7
Technical specifications ....................................................................................................................... 35
A
Modbus holding registers.................................................................................................................... 37
A.1
Process data....................................................................................................................... 37
A.2
MODBUS driver settings ..................................................................................................... 38
A.3
A.4
Basic settings ..................................................................................................................... 40
A.5
Totalizer............................................................................................................................. 42
Modbus RTU RS 485
Operating Instructions, 03/2021, A5E00753974-AB
3