2.6.2.1
Easy Maintenance
Easy Maintenance
means the support for adding and removing modules during operation
without having to restart the system. There are the following behaviors:
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!
Overview
VIPA System SLIO
Basics and mounting
Demounting > Demounting periphery modules
HB300 | CPU | 013-CCF0R00 | en | 19-30
36