Interrupts - Siemens SIMATIC S7-1500 Manual

Interrupts/diagnostics alarms

5.2 Interrupts

CHx LED
Table 5- 3 CHx status display
LED CHx
Off
On
On
5.2 Interrupts
The analog output module AQ 4xU/I ST supports diagnostic interrupts.
Diagnostic interrupt
The module generates a diagnostic interrupt at the following events:
● Missing supply voltage L+
● Short-circuit to ground
● Wire break
● Overflow
● Underflow
For more information on the error event, refer to the error OB with the RALRM instruction
(read additional interrupt information) and to the STEP 7 online help.
26
Meaning
Channel deactivated
Channel configured and OK
Diagnostic alarm: e.g., wire break, overflow,
underflow
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Check the wiring.
Disable diagnostics.
Analog output module AQ 4xU/I ST (6ES7532-5HD00-0AB0)
Manual, 07/2014, A5E03484696-AC
Remedy