Mitsubishi QJ71BR11 User Manual

8 TROUBLESHOOTING
MELSEC-Q
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*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
Error
Code
(SD0)
*1
Error Contents and Cause Corrective Action
Corresponding
CPU
6200
The standby system in a redundant
system is switched to the control
system.
Check the control system condition. Q4AR
The standby system has been
switched to the control system in a
redundant system. (Detected by the
CPU that was switched from the
standby system to the control system)
Since this error code does not indicate
the error information of the CPU
module but indicates its status, the
error code and error information are
not stored into SD0 to 26, but are
stored into the error log every system
switching.
(Check the error information by
reading the error log using GX
Developer.)
---- QnPRH
6210
The control system in a redundant
system is switched to the standby
system.
Check the control system condition. Q4AR
The control system has been switched
to the standby system in a redundant
system. (Detected by the CPU that
was switched from the control system
to the standby system)
Since this error code does not indicate
the error information of the CPU
module but indicates its status, the
error code and error information are
not stored into SD0 to 26, but are
stored into the error log every system
switching.
(Check the error information by
reading the error log using GX
Developer.)
---- QnPRH

Mitsubishi QJ71BR11 Specifications

General

Brand	Mitsubishi
Model	QJ71BR11
Category	Controller
Language	English