Diagnostics
5.2 Fault Diagnostics
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
47
Reaction of F-Modules to Module Failure
The following events occur following a serious internal fault in the F-module, causing F-
module failure:
●
The connection to the backplane bus is interrupted and the fail-safe I/O are passivated
●
Diagnostics are not transmitted from the F-module and the default diagnostic message
"Module Fault" is reported
●
The SF LED of the corresponding F-module illuminates
Specific Information about Diagnostic Functions
All module-specific diagnostic functions, possible causes and their troubleshooting can be
found in the
Chapters "Power modulePM-E F pm DC24V PROFIsafe" to "Digital electronic
module 1 F-RO DC24V/AC24..230V/5A".
These sections also provide information about the status and diagnostic functions indicated
by the LEDs on the front panel of the relevant F-module.
Reading Out Diagnostic Functions
You can display the cause of a fault in the
STEP 7 module diagnostics (see STEP 7 Online
Help).
You can read the diagnostic functions (slave diagnostics) by calling SFC 13 in the standard
user program (see
System and Standard Functions reference manual).
See also
Diagnostic functions of the PM-E F pm DC24V PROFIsafe (Page 75)
Diagnostic functions of the PM-E F pp DC24V PROFIsafe (Page 90)
Diagnostic Functions of PM-D F DC24V PROFIsafe (Page 101)
Diagnostic Functions of the EM 4/8 F-DI DC24V PROFIsafe (Page 130)
Diagnostic functions of EM 4 F-DI/3 F-DO DC24V PROFIsafe (Page 156)
Diagnostic Functions of the EM 4 F-DO DC24V/2 A PROFIsafe (Page 172)
Diagnostic functions of EM 1 F-RO DC24V/AC24..230V/5A (Page 184)