Digital modules
8.6 SM 326; DO 10 x DC 24V/2A (6ES7326-2BF01-0AB0)
Fail-safe signal modules
152 Installation and Operating Manual, 01/2010, A5E00085586-10
8.6.6 Diagnostics messages of SM 326; DO 10 x DC 24V/2A
Possible diagnostic messages
The following table provides an overview of the diagnostic messages for
SM 326; DO 10 x DC 24V/2A.
Diagnostic messages are assigned either to a channel or to the entire module. Some
diagnostic messages occur only in certain applications.
Table 8- 21 Diagnostic messages of SM 326; DO 10 x DC 24V/2A
Diagnostic message Signaled in the
application
Effective
range of
diagnostics
Assignabl
e
Wire break Yes
Short-circuit of output to M, or defective output
driver
1, 2, 3, 4, 5, 6
Channel
Short-circuit of output to L+ or defective output
driver *
1, 2, 3, 4, 5, 6 Module
Module parameters not assigned
Incorrect module parameters
Communication error
Internal supply voltage of the module failed
Time monitoring activated (watchdog)
EPROM fault; RAM fault
Internal error in read circuit/test circuit, or defective
sensor supply
Processor failure
Parameter assignment error (with specification of a
consecutive number)
No external auxiliary voltage
External load voltage missing
Defective main switch
Defective output driver
Overtemperature at output driver
Module
Defective load voltage or load voltage not
connected
1, 2, 3, 4, 5, 6
Channel
group
CRC signature error
Timeout of safety message frame monitoring
3, 4, 5, 6
Module
Message frame error 1, 2 Module
No
*The module is passivated. The module immediately shuts down and returns a "Processor failure"
error message if a repeated short-circuit is detected.
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