Chapter 5 Program Configuration and Operation Method
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4) Data Latch Area Operation
The method to delete the latched data is as below.
- D.CLR switch operation of CPU module
- latch 1, latch 2 clear operation by XG5000
- write by Program (initialization program recommended)
- write ‘0’ FILL from XG5000 monitor mode.
D.CLR Clear does not operate in RUN mode. Convert to STOP mode to operate. Also when clearing by
D.CLR switch, bear in mind that general area shall be initialized.
When operating D.CLR momentarily, latch 1 area only shall be removed. If keeping D.CLR for 3
seconds, 6 LEDs shall be blinked and at this time, if returning the switch, even latch 2 area shall be
cleared.
For keep or reset (clear) operation of latch area data according to PLC operation, please refer to the below
table.
No. Classification Detailed operation Latch 1 Latch 2 Remarks
1 Power change Off/On Keep Keep
Reset Keep Keep
2 Reset switch
Overall reset Reset Keep
Clear Latch 1 Reset Keep
3 D.CLR switch
Clear Latch 2 Reset Reset
4 Program write (online) - Keep Keep
SRAM broken by battery error Reset Reset
5 Data broken
Data broken by other reason Reset Reset
Clear Latch 1 Reset Keep
6 XG5000 online
Clear Latch 2 Reset Reset
5) Data Initialization
In case of Memory Delete state, the memory of all device shall be cleared as ‘0’. In case of giving the data
value at the beginning according to system, please use the initialization task.
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