Sm 322; Do 8 X Rel. Ac 230V/5A - Interrupts - Siemens SIMATIC Manual

Causes of error and troubleshooting
Table 3- 37 Diagnostic messages of SM 322; DO 8 x Rel. AC230V/5A, cause of error and troubleshooting
Diagnostics message
Watchdog time-out
EPROM error
RAM error
3.35.3

SM 322; DO 8 x Rel. AC 230V/5A - Interrupts

Introduction
The SM 322; DO 8 x Rel. AC 230V/5A can trigger diagnostic interrupts.
For detailed information on the OBs and SFCs mentioned below, refer to the
Help.
Enabling interrupts
There is no default interrupt setting, i.e. interrupts are disabled if not set accordingly.
Program the interrupt enable parameter in STEP 7.
Diagnostic interrupt
Incoming error events (initial occurrence) and outgoing error events (error is cleared) are
reported by means of diagnostics interrupt, if this interrupt is enabled.
The CPU interrupts user program execution in order to process diagnostics interrupt OB82.
You can call SFC51 or 59 in OB82 in the user program to obtain detailed diagnostics data
from the module.
Diagnostics data remain consistent until the program exits OB82. The module acknowledges
the diagnostics interrupt when the program exits OB82.
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
3.35 Relay output module SM 322; DO 8 x Rel. 230VAC/5A; (6ES7322-5HF00-0AB0)
Error detection Possible cause of error
generally infrequent high level of electro-
magnetic interference
Defective module
generally infrequent high level of electro-
magnetic interference
Defective module
generally transient high electromagnetic
interference
Defective module
Digital modules
To correct or avoid errors
Eliminate interference and cycle the
CPU power supply off and on
Replace the module
Eliminate interference and cycle the
CPU power supply off and on
Replace the module
Eliminate interference and cycle the
CPU power supply off and on
Replace the module
STEP 7
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