• The below table describes the device communication interfaces.
  • Max. cable length and type is described in chapter cable length and type.

Interfaces

Technical data

Exemplary use case

Peripheral extension bus (T70)

Communication: ModbusRTU client

Isolation: Galvanically non-isolated

Addresses 1...31, 0 not used

Baud rate: 38400, e, 1

Bus termination (fix): 390 Ω / 120 Ω +1 nF / 390 Ω

Plug: PCB direct connectors for communication and power supply

  • Use "Board-to-Board connector" POL001.45/STD to connect extension modules to controller and to each other.
  • Use “Board-to-Connector” POL002.43/STD to mount extension modules with distance to controller and/or to power supply extension modules externally in case there is not enough power supply available form controller.

Extension bus to connect to Climatix controller and to next I/O extension module