User Manual

Communication

Local service interface

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Connecting PC tools

The connection to PC tools such as SCOPE, PC USB port and cable type

POL0C2.40/STD is as follows:

Connecting touch panel

C400 controllers can be connected with touch panels using Modbus over RS485

as follows:

Limitations

● Maximum length of unshielded twisted pair cable is 3 m

● P2P communication is preferable to the RS485 network

Cable connection

The top view of RJ45 jack (8 pins) is as follows:

Pin-out for RJ45-connector

Pin Signal

1 USB device, D+

2 USB device, D-

3 RS485, A+

4 Ground

5 Select 2

6 RS485, B-

7 Select 1

8 DC 24 V (output)

Note:

● Maximum current at DC 24 V is 60 mA, only powered for HMI DM/TM.

● Default setting for this interface is Modbus slave. It can be configured to

Modbus master mode.