Intended Purpose

In contrast to other I/O modules, the digital I/O module (multi-function module) DC541-CM is installed on a communication module slot to the left of the AC500 CPU. It contacts the internal communication module bus there. In this way, the full functionality of the communication module bus is available for the module DC541-CM.

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 24V signals (e.g. 24 V incremental encoder). The configuration is simply done using the AC500 Control Builder programming software in the PLC configuration Configuring the Module DC541-CM.

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