Chapter 4 CPU Specifications
XBC E-Type Main Unit
4-22
Ver. 1
2. Data latch area operation
a. The method to delete the latched data is as below.
i. latch 1, latch 2 clear operation by XG5000
ii. write by Program (initialization program recommended)
iii. write ‘0’ FILL from XG5000 monitor mode.
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
1
Power change
Off/On
Keep
Keep
2
Reset by XG5000
Overall reset
Reset
Keep
3
Program write (online)
-
Keep
Keep
4
Data corruption
SRAM corrupted by battery error
Reset
Reset
Data corrupted by other reason
Reset
Reset
5
XG5000 online
Clear Latch 1
Reset
Keep
Clear Latch 2
Reset
Reset
b. Latch 1 area is cleared by
『
Online
』
-
『
Reset PLC
』
- “Overall reset”.
Summary of Contents for XBC-DN10E
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