5 Installation and Wiring
5 - 6
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
After a power interruption is confirmed, the CPU Unit performs the following processing and then stops.
You can reset the CPU Unit from the Sysmac Studio.
A reset from the Sysmac Studio follows the same operation as cycling the power supply of the Unit
power.
Resetting is possible, however, only when the CPU Unit is in PROGRAM mode.
Confirm the following status before resetting the CPU Unit.
• Check the status of output loads.
• Make sure that SD Memory Card access is not in progress.
Processing After Power Interruption Is Confirmed
Item Description
I/O refresh I/O refresh stops, and all outputs are turned OFF. Tag data links via
the EtherNet/IP stop.
Processing SD Memory Card access in
progress
Any writing is interrupted, files are closed, and the Card is
unmounted.
Transferring user program
(including online editing)
Interrupted.
As a result, an error will occur the next time that the power is turned
ON. The Controller will not operate.
User program execution User program execution is aborted even during execution of an
instruction.
Saving event log The time that a power interruption occurs and the cause (primary
power interruption) of the interruption are recorded.
5-1-3 Resetting the Controller from the Sysmac Studio
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