Modbus - Siemens LMV36.520A1 Basic Documentation


150/248
Building Technologies Division
Infrastructure & Citiies Sector

18.2 Modbus

With this type of bus protocol, the LMV36... basic unit operates as a slave on the
Modbus and the transmission mode used is RTU (Remote Terminal Unit).
For more detailed information, refer to the Modbus User Documentation (A7541).
No. Parameter
Device address for Modbus of basic unit
145
Setting value:
1...247
Baud rate for Modbus
146 Setting value:
0 = 9600
1 = 19200
Setting of parity for Modbus communication
Setting value
147
0 = none
1 = odd
2 = even
The factory settings of the parameters are shown on the parameter list.
Note
If bus communication breaks down, the mode, Modbus operating mode and
predefined target output must be rewritten.
Basic documentation LMV36...
18 Connection to superposed systems
CC1P7544en
25.09.2013