Siemens SIMATIC User Manual

Digital modules
3.32 Digital output module SM 322; DO 8 x AC 120/230 V/2 A ISOL (6ES7322-5FF00-0AB0)
S7-300 Module data
196 Manual, 06/2017, A5E00105505-AJ
3.32.2 SM 322; DO 8 x AC 120/230 V/2 A ISOL - Diagnostics
Diagnostic messages of SM 322; DO 8 x AC 120/230 V/2 A ISOL
The table below provides an overview of the diagnostic messages of
SM 322; DO 8 x 120/230 VAC/2 A ISOL.
Table 3- 33 Diagnostic messages of SM 322; DO 8 x AC 120/230 V/2 A ISOL
Diagnostics message
LED
Scope of diagnostics
programmable
Watchdog timeout
SF
Module
no
EPROM fault SF Module no
RAM fault
SF
Module
no
Causes of error and troubleshooting
The following table shows the diagnostic messages of SM 322; DO 8 x AC 120/230V/2 A
ISOL, causes of error and troubleshooting.
Table 3- 34 Diagnostic messages of SM 322; DO 8 x AC 120/230V/2 A ISOL, error causes and troubleshooting
Diagnostics message
Error detection
Possible cause of error
To correct or avoid errors
Watchdog timeout Always Transient high electromagnetic
interference
Eliminate interference and cycle the
CPU power supply off and on
Defective module
Replace the module
EPROM fault Always Transient high electromagnetic
interference
Eliminate interference and cycle the
CPU power supply off and on
Defective module
Replace the module
RAM fault Always Transient high electromagnetic
interference
Eliminate interference and cycle the
CPU power supply off and on
Defective module
Replace the module
3.32.3 SM 322; DO 8 x AC 120/230 V/2 A ISOL - Interrupts
Introduction
The SM 322; DO 8 x AC 120/230 V/2 A ISOL 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.

Siemens SIMATIC Specifications

General

Brand	Siemens
Model	SIMATIC
Category	Control Unit
Language	English