Displaying Module States

Overview

This is carried out with 4 LEDs: RUN, ERR, A/B, I/O which are located on the module. Their state (LED off, flashing or on) provides information on the operating mode of the module.

LED state:

LEDs	On	Flashing (**)	Off
RUN (green)	Module OK and configured	Awaiting configuration	Module failure or self-test fault
ERR (red)	Serious non-rectifiable module fault	Rectifiable module fault (Control Expert configuration, AS-i power supply)	Module OK
/B (green)	/B configured extended address settings slaves display	-	/A configured slaves display
I/O (red)	AS-i bus fault	Fault or awaiting user configuration	AS-i Bus OK
0 to 31 (green)	Slave number OK (projected, present and active)	Slave Number /OK (*)	Slave number not projected and absent

(**) all LEDs flash during module self-tests.

(*) a slave is declared /OK when one of the conditions required for correct operation is not satisfied, regardless of the error level:

Error Level 1:
- Slave declared but not detected,
- Slave detected but not declared.
Error Level 2:
- Slave has different profile from declared slave,
- Slave profile incompatible with address,
- Slave with incorrect subprofile.
Error Level 3:
- Slave refuses parameters,
- Slave has auxiliary power supply fault,
- Analog data fault (channel fault),
- Other faults linked to analog slave characteristics,
- Input / Output or auxiliary power supply overload,
- External error:
  
  - thermal relay,
  
  - slave self-tests NOK.

The user must connect his/her programming tool to access detailed information on the faulty slave. The local display can only show a malfunction in its related slave.