Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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189
Simple Backup Function (Backup of Protocol Macro Data) Section 5-5
This procedure creates the Protocol Data File and writes it to the Memory
Card along with the other backup files.
When the Memory Card power supply switch is pressed, the MCPWR Indica-
tor on the front of the CPU Unit will flash once and then remain lit while the
data is being written. The Indicator will go OFF after the data has been written
properly.
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Restoring the Protocol Data from the Memory Card
Follow these steps to restore the Protocol Data File, i.e., read the protocol
data from the Memory Card and set it in the Serial Communications Board/
Unit.
1. Make the following settings to pins 7 and 8 in the DIP Switch on the front
of the CPU Unit.
2. Turn the PLC’s power supply from OFF to ON.
This procedure reads the Serial Communications Board/Unit’s Protocol Data
File from the Memory Card and sets that data in the Serial Communications
Board/Unit.
When the PLC’s power is turned ON, the MCPWR Indicator on the front of the
CPU Unit will light and flash once. The MCPWR Indicator will remain lit while
the data is being read. The Indicator will go OFF after the data has been read
properly.
Serial Communications Board Operation
The Serial Communications Board’s RDY Indicator will flash during the
restore operation and it will be lit when the restore operation is completed nor-
mally.
Serial Communications
Board/Unit
Protocol data
• Backup
Memory Card power supply switch
CPU Unit
All data
Memory Card
Pin Setting
7 ON
8 OFF
Serial Communications
Board/Unit
Protocol data
• Restore
Turn ON
power.
CPU Unit
All data
Memory Card