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2.3 Precautions
13 When connecting to a Q4ARCPU redundant system
(1) When the GOT is bus-connected to a Q4ARCPU redundant system
Connect the GOT to the last redundant extension base unit (A68RB) of the Q4ARCPU redundant
system.
For the redundant extension base units, use version B or later.
The version can be confirmed in the DATE field of the rating plate.
Precautions for Q4ARCPU redundant system configurations
The GOT does not operate normally in the following system configurations.
(1) When the GOT is bus connected to the bus switching module (A6RAF) on a
redundant main base unit (A32RB/A33RB)
(2) When the GOT is bus connected to a version-A redundant main base unit
(A68RB)
(2) Power-On sequence for GOT and Q4ARCPU redundant system
Apply the power to the GOT and Q4ARCPU redundant system in the following sequence.
1 Turn ON the GOT.
2 After the monitor screen is displayed on the GOT, turn ON the Q4ARCPU redundant system.
At this time, a timeout is displayed on the system alarm. Use System Information to reset the
alarm.
For the system alarm, refer to the following manual:
GT Designer2 Version
Screen Design Manual
MITSUBISHI
PROGRAMABLE CONTOROLLER
DATE 9806 B
MITSUBISHI ELECTRIC CORP.JAPAN
!
Caution
Version of redundant extension base unit
Enlarged view of rating plate
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