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Unit Functions
2-3-2
Backup Function
Function Overview
Backup Procedure
1,2,3...
Note
2-3-3
Automatic Restore Function
Function Overview
26
The backup function records the parameter data of all Slice I/O Units con-
nected to the DeviceNet Communications Unit. The parameter data recorded
in the Communications Unit can be restored to the Slice I/O Units later with
the automatic restore function when a Slice I/O Unit has been replaced.
Power ON
Turn pin 4 ON, OFF, and
then ON again while the
power is ON and pin 1 is ON.
1. Verify that the power is ON, DIP switch pin 1 (REGS) is ON, and all of the
Slice I/O Units are participating in I/O communications.
2. Turn DIP switch pin 4 (BACK) ON, then OFF, and then ON again within 3 s
to start the back up.
3. While the data is being backed up, the DeviceNet Communications Unit's
TS indicator will flash green every 0.5 s. The TS indicator will stop flashing
(not lit) when the backup is completed. If the restore operation fails, the TS
indicator will be lit red for 2 s.
(1) Do not turn OFF the power supply or reset the Configurator while data is
being backed up. The data will not be backed up properly if the power is
turned OFF.
(2) The backup data will be erased along with the registered I/O configuration
table if the power supply is turned ON or the Slave is reset while DIP
switch pin 1 (REGS) is turned OFF.
(3) We recommend backing up the parameter data in case a Unit fails in the
future.
When a Slice I/O Unit has been replaced, this function will automatically
download (restore) Slice I/O Unit parameter data that was previously backed
up in the DeviceNet Communications Unit. The following conditions are
required to execute the automatic restore function:
• DIP switch pin 1 (REGS) was ON when the power was turned ON, so the
registered table is enabled.
• DIP switch pin 3 (ADR) was ON when the power was turned ON, so the
automatic restore function is enabled.
• Parameter data has been backed up in the DeviceNet Communications
Unit.
DeviceNet
#1
#2
Communications
Unit
Downloads all of the I/O Units' unit
information and parameter data.
Section 2-3
#3
#4
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