Reaction in the Event of a Fault

If the module detects a fault on a digital input, the user program processes a low level in

accordance with the de-energized to trip principle.

The module activates the FAULT LED.

In addition to the channel signal value, the user program must also consider the

corresponding error code.

The error code allows the user to configure additional fault reactions in the user program.

Safety-Related Outputs

Each group of 8 outputs is provided with a connector on the clamps for the common

ground.

If an output channel is overloaded, it is switched off for ten seconds until the overload is no

longer present. If the module output range has a total load of more than 8 A, the outputs

are all switched off for 10 seconds and a new test is performed.

Line Control

The digital outputs DO 1 through DO 8 of the DIO 24/16 01 module can be used to monitor

the own digital inputs or the digital inputs of other modules (e.g., DI 32 01) for short-circuits

and open-circuits, e.g., for an EMERGENCY STOP button complying with Cat. 4 in

accordance with EN 954-1. To this end, the outputs are pulsed and connected to the

safety-related digital inputs. In this case, the outputs assume the function of pulsed outputs.