Siemens SIMATIC User Manual

Digital modules
3.35 Relay output module SM 322; DO 8 x Rel. 230VAC/5A; (6ES7322-5HF00-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
215
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
Error detection
Possible cause of error
To correct or avoid errors
Watchdog time-out generally infrequent high level of electro-
magnetic interference
Eliminate interference and cycle the
CPU power supply off and on
Defective module
Replace the module
EPROM error generally infrequent high level of electro-
magnetic interference
Eliminate interference and cycle the
CPU power supply off and on
Defective module
Replace the module
RAM error generally transient high electromagnetic
interference
Eliminate interference and cycle the
CPU power supply off and on
Defective module
Replace the module
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
STEP 7 Online
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.

Siemens SIMATIC Specifications

General

Brand	Siemens
Model	SIMATIC
Category	Control Unit
Language	English