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TROUBLESHOOTING
9.4.3 Maintenance of the QJ71PB92V in the standby system
The following shows how to perform maintenance in the standby system during Backup
mode operation and to restart the redundant system operation.
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9.4 Troubleshooting in the Redundant System
9.4.3 Maintenance of the QJ71PB92V in the standby system
Maintenance
Maintenance
• Sequence program modification
• Parameter change in GX Configurator-DP or GX Works2
• Change of QJ71PB92V operation mode
• Recovery from error
• Powering OFF and then ON
• Resetting redundant CPU
• Replacement of QJ71PB92V
Figure 9.8 Detail of Maintenance