Siemens Simatic S7-300 - Diagnostics of SM 322; DO 8 X DC 24 V;0.5 a

Digital modules
3.24 Digital output module SM 322; DO 8 x DC 24 V/ 0.5 A; with diagnostics interrupt; (6ES7322-8BF00-0AB0)
S7-300 Automation System Module data
3-78 Manual, 08/2006, A5E00105505-04
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 LED Scope of diagnostics programmable
Wire-break* SF Channel Yes
Load voltage missing SF Channel Yes
Short-circuit to M SF Channel Yes
Short-circuit to L+ SF Channel Yes
External auxiliary voltage missing SF Module No
Internal auxiliary voltage missing SF Module No
Fuse blown SF Module No
Watchdog time-out SF Module No
EPROM error SF Module No
RAM error SF Module No
* 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
STEP 7 .