Zelio Smart relay Communication

[Selo Ginanjar]

Hi Guys, I have a difficulties communicating zelio with my PC through Modbus extension module (SR3MU01DB). i have tried to create the cable to communicate with it but it didn't work. does anyone know the cable diagram for zelio through modbus module? any advice would be appreciate.

[RDA]

PIN 4 A+ PIN 5 B-

[Selo Ginanjar]

thank you RDA, it was writen in the manual. so actually if we're using SR3MBU01BD (Modbus RTU module) the signal coming from the module are Modbus RS-485 (but in physical connector it seems Ethernet/Modbus TCP, but still it's not Modbus TCP). while if we are using the SR3NET01BD it's the Modbus TCP.