Description: How to connect Twido with tesys and zelios using TESYS LU9GC3 under Modbus RS485
In 1st picture there is the connection of a Twido modbus (any Twido model)
1 : Modbus RS485 Communication module LULC031
2 : Connection cable VW3A8308R with RJ45 connector on each end. Used to connect TESYS and distribution unit
3 : Modbus distribution unit LU9GC3. Used to connect the Twido and multi TESYS starter controllers via RJ45 connectors
The 2nd picture is showing the internal wiring of the modbus distribution unit
In 1st picture there is the connection of a Twido modbus (any Twido model)
1 : Modbus RS485 Communication module LULC031
2 : Connection cable VW3A8308R with RJ45 connector on each end. Used to connect TESYS and distribution unit
3 : Modbus distribution unit LU9GC3. Used to connect the Twido and multi TESYS starter controllers via RJ45 connectors
The 3rd picture is showing how to connect a Twido Master cpu with 2 or more (up to 29slaves) slave Zelios (internal wiring) using the modbus spliter box Tesys LU9GC3. The polarization resistor must be manage by the master.
Note . Resistors of 4,7KΩ are implanted inside Twido CPU .
At the 4th picture is showing the above implementation on how to connect them in reality. The modules that are neccessary to implement this connection are :
1 : One Twido master Cpu (any model)
2 : Two (or more) Zelios with their modbus extension module SR3MBU01BD
3 : One Tesys LU9GC3 modbus RS485 distibution unit
4 : Two cables VW3A8306R03
5 : A connector unit VW3A8306TF03
6 : Two termination resistors VW3A8306RC
The implementation of the program will be added soon or in a next post