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5 Diagnostic system
5.2 System behaviour in the event of an error
5.2.1
Module error
If a module error is detected, the SFB-PN responds as follows:
−
In PROFIsafe, the SFB-PN is passivated, all input and output data
are set to "0".
−
The RED SF-LED of the SFB-PN is switched on. (refer to Chapter 3.3.3)
−
The SFB-PN sets the error flag "Module" as collective error message.
(Bit 0, I-ADR n+1 in submodule „Functional data“, refer to Chapter 4.3.6)
−
The SFB-PN sends diagnostic alarms with the error numbers
to the F-PLC.
−
The Err-LED of the SFB-PN displays a RED flashing code.
(refer to Chapter 3.3.3)
−
Normally the RED SF LED of the F-PLC is also switched on.
This depends on the type of F-PLC used.
5.2.2
Device port error
If a device port error is detected, the SFB-PN responds as follows:
−
The device port is passivated, all input and output data are set to "0".
−
The RED SF-LED of the SFB-PN is switched on. (refer to Chapter 3.3.3)
−
The SFB-PN sets the error flag "Device Port" as collective
error message.
(Bit 1, I-ADR n+1 in submodule „Functional data“, refer to Chapter 4.3.6)
−
At FB-Interface communication errors the error flag "COM FB-Interface"
is set.
(Bit 2, I-ADR n+1 in submodule „Functional data“, refer to Chapter 4.3.6)
−
The SFB-PN sends diagnostic alarms with the error numbers
to the F-PLC.
−
The error LED at the device port displays a RED flashing code.
(refer to Chapter 3.3.1)
−
The qualifier bit of the disturbed device port is reset to "0".
A qualifier bit is available for each device port X0 - X7.
"1" = device port active and "0" = device port passivated
(Bit 0-7, I-ADR n+1 in submodule „Functional data“,
refer to Chapter 4.3.6)
5.2.3
Errors in safety related communication to F-PLC
Errors in safety-related communication are detected by mechanisms defined in the
PROFIsafe profile. The system reacts according to the responses defined in the
PROFIsafe profile.
In the event of an error in the safety related communication, all input and output
data of the SFB-PN are set to "0" and the module remains passivated until the
error in the communication has been corrected.
After eliminating an error in the safety-related communication, the module must be
reintegrated, as required by the PROFIsafe specification.
INFORMATION
Further information can be found in the online help or in the system manual of
your engineering software.
