Wiring the switching cabinet

With most machines and systems, the signals of the sensors/actuators are wired to the PLC with terminal blocks in the switching cabinet. The advantage: The switching cabinet can be separated from the machine or system via the terminal block interface.

The terminal block - PLC connection is provided by individual cores. Each input and output of the PLC I/O module must be connected to a pin on the terminal block (i.e., each individual core has to be cut to the proper length, bared on the ends, inserted, and tagged). This procedure is very time-consuming and prone to errors. Each connection point can be the source of errors which makes meticulous testing unavoidable.

The fully modular version uses plug-in connectors to link the PLC I/O module with the terminal block. This almost completely excludes incorrect assignments since the IDC connector is crimped to the ribbon cable in one step. Cabling is fast and clear since several cores are combined.