1
OVERVIEW
1.1 Redundant System Overview
1 - 5
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
* 1: The control system indicates the system that actually controls the redundant system.
( Section 5.1.2)
* 2: The standby system indicates the backup system within a redundant system.
( Section 5.1.2)
If an error occurs in the control system, the standby system takes over the control of the
redundant system.
* 3: Refer to Section 2.3, for details of network modules compatible for redundant system.
Remark
The redundant system described in this manual does not guarantee continuous
operation of the system depending on the failure status. Also, when system
switching occurs due to an extension base unit error or a module error on the
extension base unit, the standby system also detects the error and the CPUs on
both systems will stop. Therefore, create a safety circuit externally so that the
overall system safety can be ensured even in these cases.
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