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1.1 Features
1
OVERVIEW
(6) Redundant system construction is available. (Compatibility with
redundant CPUs)
(a) System redundancy using CC-Link IE controller network modules can be
designed.
By mounting a CC-Link IE controller network module to each of base units with
redundant CPUs, a redundant system can be configured.
If an error occurs in the control system CPU or CC-Link IE controller network
module, the control and standby systems will be switched each other, and the
standby system will take over the system control and data link.
(b) System switching request can be issued to the control system CPU.
When the CC-Link IE controller network module of the control system CPU
detects a data link error, it can issue a system switching request to the control
CPU.
(c) Transient transmission to a redundant system is executable.
With a link dedicated instruction or from GX Developer, device data can be read
from or written to its own system, control/standby system, system A/B of a
redundant system, and remote RUN/STOP can be controlled.
By specifying the target station's CPU type to Control or Standby system, the
target can be fixed even if a system switching occurs.
Figure 1.20 Redundant system
Control
station No.3
Normal
station No.1
Normal
station No.2
Normal
station No.4
CC-Link IE controller
network module
CC-Link IE controller network
Tracking cable
Control system
Standby system
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