Fail-Safe Electronic Modules
8.2 4 /8 F-DI/4 F-DO DC24V/2A PROFIsafe Digital Electronic Module
ET 200pro Distributed I/O System - Fail-Safe Modules
100
Operating Instructions, 05/2007, A5E00394073-02
8.2.7
Diagnostic Functions of the 4/8 F-DI/4 F-DO DC24V/2A PROFIsafe Electronic
Module
Behavior in Case of Supply Voltage Failure
Failure of sensor supplies Vs1 and Vs2 is indicated by the SF LED, VsF LED, and the LEDs
of the relevant channel group on the F-module. This information is also provided on the
module (diagnostic entry). All channels of the module are passivated.
Diagnostic Functions
The following table presents an overview of the diagnostic functions of the 4/8 F-DI/4 F-DO
DC24V/2A PROFIsafe electronic module. The diagnostic functions are assigned either to
one channel or to the entire module.
Table 8-18 Diagnostic Functions of the 4/8 F-DI/4 F-DO DC24V/2A PROFIsafe Electronic Module
Diagnostic Function*
Fault
Number
LED Range of
Effectiveness of
Diagnostic
Assignabl
e
Short circuit
1
H
SF
Channel
No
Overload
4
H
SF
Channel
No
Overtemperature
5
H
SF
Module
No
Wire break
6
H
SF
Channel
Yes
Fault
9
H
SF
Module
No
Parameter assignment error
10
H
SF
Module
No
Sensor voltage or load voltage is missing
11
H
SF
Module
No
Communication error
13
H
SF
Module
No
Safety-related shutdown
19
H
SF
Channel
No
*: Specifically for F-modules; display in
STEP 7
, see the "Channel-Specific Diagnostics, Fault Types
of Fail-Safe Modules" table
