Diagnosis and Display

In case of overload or short-circuit, the outputs switch off automatically and try to switch on again cyclically. Therefore an acknowledgement of the outputs is not necessary.

Status of the LEDs

LED	Status	Colour	LED = OFF	LED = ON
Inputs/ outputs C0…C7	Digital input or digital output	yellow	Input/output = OFF	Input/output = ON (the input voltage is even displayed if the supply voltage is OFF).
UP	Process voltage 24 V DC via terminal	green	Process voltage is missing	Process supply voltage OK and initialization terminated
CH-ERR1	Module Error	red	No error	Error