Diagnostics Of Sm 322; Do 8 X Dc 24 V/0.5 A - Siemens SIMATIC S7-300 Manual

Digital modules
3.24 Digital output module SM 322; DO 8 x DC 24 V/ 0.5 A; with diagnostics interrupt; (6ES7322-8BF00-0AB0)
3.24.2

Diagnostics of SM 322; DO 8 x DC 24 V/0.5 A

Diagnostics messages of SM 322; DO 8 x DC 24 V/0.5 A
The table provides an overview of the diagnostic messages of SM 322;
DO 8 x DC 24 V/0.5 A
Table 3-19 Diagnostics messages of SM 322; DO 8 x DC 24 V/0.5 A
Diagnostics message
Wire-break*
Load voltage missing
Short-circuit to M
Short-circuit to L+
External auxiliary voltage missing
Internal auxiliary voltage missing
Fuse blown
Watchdog time-out
EPROM error
RAM error
* The module detects a wire-break at a current < 1 mA.
If configured accordingly, the
SF LED and corresponding channel error LED light up when a wire-break is detected.
Note
Prerequisite for the detection of errors indicated by programmable diagnostic messages is
an appropriate configuration of the digital module in
3-78
LED Scope of diagnostics
SF Channel
SF Channel
SF Channel
SF Channel
SF Module
SF Module
SF Module
SF Module
SF Module
SF Module
programmable
Yes
Yes
Yes
Yes
No
No
No
No
No
No
STEP 7
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S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04