Data Exchange Mode; Figure 16: Point-To-Point Connection Between 2 Nodes - WAGO 750-652/040-000 Manual

WAGO-I/O-SYSTEM 750 XTR
750-652/040-000 Serial Interface RS-232/RS-485 XTR
7.2.5

Data Exchange Mode

Figure 16: Point-to-point Connection Between 2 Nodes

In this mode, the contacts of the I/O modules to connect are connected to each
other crosswise.
In the Data Exchange operating mode (point-to-point connection), a twisted-pair
cable should be used at least for larger cable lengths. 2 wire pairs and 1 ground
wire are required. The ends of the cable should be terminated with a terminal
resistor.
Generally, a passive resistance is used by connecting the signal lines via one
100 Ω ... 120 Ω resistor apiece to the ends of the cable (A-B).
Connect Devices 53
Manual
Version 1.3.0