Siemens SIMATIC FM 353 Manual page 305

11.1 Error classes and module responses
Overview
The FM 353 contains monitoring circuits which are active during startup or during
continuous operation. Errors occurring during those times are reported to the sys-
tem and to the user program.
The table below lists the error classes and their meaning.
Table 11-1 Error classes, overview
Message Error class
Internal errors
External errors
Diagnostic
interrupt
External
channel errors
Operator con-
trol and travel
errors
Checkback
signals signals
Data errors
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
Response
... are hardware faults in the module which are discovered
by diagnostics routines (e.g. memory errors).
(see Section 6.3.4 for diagnostic interrupt data and error list,
Table 11-4)
... are errors which can occur due to faulty module connec-
tion (e.g. parameters for initialization of module MPI station
numbers are missing or are incorrect).
Everything
(see Section 6.3.4 for diagnostic interrupt data and error list,
OFF
Table 11-4)
... are measurement system errors or errors which can oc-
cur by connecting the digital outputs or during operation
(operator control errors) of the FM 353 (e.g. cable break,
incremental value encoder).
(see Section 6.3.4 for diagnostic interrupt data and error list,
Tables 11-4 and 11-5)
... are errors (operator/travel errors) which can occur during
Feed
operator inputs to the FM 353 (e.g. direction signals R+ and
STOP R− set at the same time, see Error List, Tables 11-6 and
11-7).
... are errors (data, machine data and traversing program
Warning! errors) which are detected on interpretation of invalid data
(see Error List, Table 11-8).
Troubleshooting
Significance
11-3