State LEDs

During the power ON procedure, the module initializes automatically. All LEDs (except the channel LEDs) are ON during this time.

LED	State	Color	LED = OFF	LED = ON	LED flashes
Inputs 00…07	Digital input	Yellow	Input = OFF	Input = ON (the input voltage is even displayed if the supply voltage is OFF).	–
Outputs 08…15 (relays)	Digital output	Yellow	Relay output = OFF	Relay output = ON	–
UP	Process supply voltage 24 VDC via terminal	Green	Process supply voltage is missing	Process supply voltage OK	–
CH-ERR1	Channel Error, error messages in groups (digital inputs/outputs combined into the groups 1 and 2)	Red	No error or process supply voltage is missing	Severe error within the corresponding group	Error on one channel of the corresponding group
CH-ERR2		Red
CH-ERR *)	Module Error	Red	–	Internal error	–
*) All of the LEDs CH-ERR1 to CH-ERR2 light up together