Intended Purpose

In contrast to other I/O modules, the digital I/O module (multi-function module) DC541-CM is connected to a communication module slot to the left of the AC500 CPU. It contacts the internal communication module bus. This way, the full functionality of the communication module bus is available for the module DC541-CM. Depending on the terminal base TB5x1 used, up to 4 DC541-CM modules can be connected.

The multi-function module DC541-CM can optionally (not at the same time) be configured as an interrupt module or as a fast counter module for 24 V signals (e.g. 24 V incremental encoder).Automation_Builder is used for the configuration.

The module contains 8 fast channels (C0…C7) with the following features:

• 8 digital inputs/outputs in one group (1.0…1.7), of which each can be used
  • as an input,
  • as a transistor output with short-circuit and overload protection, 0.5 A rated current or
  • as a re-readable output (combined input/output) with the technical data of the digital inputs and outputs.

The states of the inputs/outputs are indicated by yellow LEDs (one per channel). There is no potential separation between the channels.