VIPA System SLIO
2.11
Easy Maintenance
Overview
HB300 | FM | 050-1BB30 | en | 20-40
Easy Maintenance means the support for adding and removing modules during operation
without having to restart the system. Here the following behavior is shown by the example
of a CPU:
n
Electronic module is removed
–
The CPU detects a module failure on the backplane bus.
–
Diagnostic message 'System SLIO bus failure' (0x39D0) is triggered.
–
OB 86 is called. If this is not available, the CPU switches to STOP otherwise it
remains in RUN.
–
The SF LED of the CPU lights up.
–
The I/O data of all modules become invalid.
n
Identical electronic module is plugged
–
The CPU detects the module return on the backplane bus.
–
The SF-LED of the CPU gets off.
–
All RUN LEDs on the modules get on and the MF LEDs get off.
–
Diagnostic message 'System SLIO bus recovery' (0x38D0) is triggered.
–
OB 86 is called. If this is not available, the CPU switches to STOP otherwise it
remains in RUN.
–
The I/O data of all modules become valid again.
n
Wrong electronic module is plugged
–
The CPU detects the wrong module.
–
Diagnostic message 'System SLIO bus recovery, but expected configuration does
not match actual configuration' (0x38D1) is triggered.
–
The SF LED of the CPU remains on.
–
The MF LED of the wrong module flashes.
–
OB 86 is called. If this is not available, the CPU switches to STOP otherwise it
remains in RUN.
–
With the exception of the wrong module, the I/O data of all modules become valid
again.
Please note that the CPU switches to STOP, if there is no OB 86 config-
ured when adding or removing System SLIO modules!
Please note, that Easy Maintenance is not supported by the 16x
periphery modules!
Basics and mounting
Easy Maintenance
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