VEGA VEGACOM 557 Modbus protocol - Manual (Page 3)

VEGACOM 557 Modbus 3
Contents
5 Setup
5.1 Setup check list: ................................................................. 34
5.2 Communication structure ................................................... 34
5.3 Format for the transfer of measured values .................... 35
5.4 Data transmission with Modbus RTU ............................... 36
5.5 Data transmission with Modbus ASCII ............................ 43
Supplement A ................................................................................. 50
Supplement B ................................................................................. 56
Safety information
Please read this manual carefully, and also take
note of country-specific installation standards
(e.g. the VDE regulations in Germany) as well
as all prevailing safety regulations and acci-
dent prevention rules.
For safety and warranty reasons, any internal
work on the instruments, apart from that in-
volved in normal installation and electrical con-
nection, must be carried out only by qualified
VEGA personnel.
Note Ex area
Please note the approval documents (yellow
binder), and especially the included safety
data sheet.