Diagnostic Functions Of The 8/16 F-Di Dc24V Profisafe Electronic Module - Siemens SIMATIC Operating Instructions Manual

Requirements for Machine Protection Applications With Category 4
The following requirements apply to machine protection applications with Category 4:
● State-of-the-art wiring must be used between the sensors and the automation system or
● All short circuits listed in the above table are detected. Detection of a short circuit is
Processes for detection of all short circuits are also permissible if individual short circuits are
not detected, provided:
● The short circuits do not cause corruption of read signals compared to the sensor signals
● The short circuits cause corruption of read signals compared to the sensor signals, but in
8.1.9

Diagnostic Functions of the 8/16 F-DI DC24V PROFIsafe Electronic Module

Behavior in Case of Supply Voltage Failure
Failure of sensor supplies Vs1 to Vs4 is indicated by the SF LED, the VsF LED, and the
LEDs of the relevant channel group on the F-module. This information is also provided on
the module (diagnostic entry). The relevant channel groups or channels (in the case of
channel-level passivation) of the module are passivated.
Diagnostic Functions
The following table presents an overview of the diagnostic functions of the 8/16 F-DI DC24V
PROFIsafe electronic module. The diagnostic functions are assigned either to one channel
or to the entire module.
Table 8-14
Diagnostic Function*
Short circuit
Overtemperature
Fault
Parameter assignment error
Sensor voltage or load voltage
is missing
Communication error
Safety-related shutdown
*: Specifically for F-modules; display in
of Fail-Safe Modules" table
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02
between the automation system and the actuators to prevent short circuits.
sufficient in this case, because two faults must exist for the short circuit to occur (both of
the short-circuited signal cables exhibit an insulation fault). Thus, a multiple short-circuit
analysis is not required.
or
the direction that ensures safety.
Diagnostic Functions of the 8/16 F-DI DC24V PROFIsafe Electronic Module
8.1 8 /16 F-DI DC24V PROFIsafe Digital Electronic Module
Fault LED Signaled in
Number Use Case
1 SF 1, 2, 3
H
5 SF 1, 2, 3
H
9 SF 1, 2, 3
H
10 SF 1, 2, 3
H
11 VsF 1, 2, 3
H
VsF
13 SF 1, 2, 3
H
19 SF 2.3
H
STEP 7
, see the "Channel-Specific Diagnostics, Fault Types
Fail-Safe Electronic Modules
Range of Assignabl
Effectiveness e
of Diagnostic
Channel Yes
Module No
Module No
Module No
Module No
Module No
Channel No
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