Interrupts - Siemens SIMATIC S7-1500 Manual

CHx LED
Table 5- 3 CHx status display
LED CHx
Off
On
On
5.2

Interrupts

The analog output module AQ 4xU/I HF supports diagnostics interrupts.
For more information on the error event, refer to the error OB with the "RALRM" instruction
(read additional interrupt info) and to the STEP 7 online help.
Diagnostic interrupt
The module generates a diagnostic interrupt at the following events:
● Missing supply voltage L+
● Short-circuit to ground
● Wire break
● Overflow
● Underflow
● Parameter assignment error
Analog Output Module AQ 4xU/I HF (6ES7532-5ND00-0AB0)
Manual, 03/2016, A5E36633205-AA
Meaning
Channel deactivated
Channel configured and OK
Diagnostic alarm: e.g., wire break, overflow,
underflow
Interrupts/diagnostics alarms
Remedy
---
---
Check the wiring.
Disable diagnostics.
5.2 Interrupts
29