5
REDUNDANT SYSTEM FUNCTIONS
5.8 Online Module Change (Hot Swapping)
5 - 124
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
TRACKING CABLE
4
PROCEDURE FOR
STARTING UP A
REDUNDANT SYSTEM
5
REDUNDANT SYSTEM
FUNCTIONS
6
REDUNDANT SYSTEM
NETWORKS
7
PROGRAMMING
CAUTIONS
8
TROUBLESHOOTING
(3) Redundant Power Supply Module
When a pair of redundant power supply modules is used in each system of the
redundant system, one redundant power supply module can be replaced at a time
after powering off the module.
As another redundant power supply module supplies power to the modules mounted
on the same base unit, the redundant system control can be continued during the
replacement.
Refer to Section 8.3.3, for details.
(4) I/O module mounted to main base unit where Redundant CPU is
mounted
The I/O modules mounted on the control system and standby system main base units
can be replaced online.
If an error occurs in an I/O module mounted on the control system or standby system
main base unit, the module can be replaced without stopping system control.
Note that a module mounted to the main base unit cannot be replaced online when
the extension base unit is connected.
Refer to the following manual, for details.
QCPU User's Manual (Hardware Design, Maintenance and Inspection)
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