Filter
Top Products
11 - 10
11.4 When programmable controller Has been Stored without a Battery
11
MAINTENANCE AND INSPECTION
11.4 When programmable controller Has been Stored without a
Battery
When the programmable controller operation is to be resumed after being stored with the
battery removed, the memories in the CPU module may be corrupted.
Hence, before resuming operation, always format the memories using GX Developer.
After formatting the memories, write the memory contents backed up prior to storage to
each memory.
The relationships between battery and battery-backed memories are shown in Table11.5.
: Battery backed, : Not battery backed
Format the battery-backed memories in Table11.5 using GX Developer before resuming
operation.
For information about the memory formatting, refer to the manual below.
GX Developer Operating Manual
POINT
1. Before storing the programmable controller, always back up the contents of
each memory.
2. The operation/error history cannot be written to the memory from GX
Developer.
Table11.5 Relationships between the battery and battery-backed memories
Memory
Battery
Q6BAT
CPU module
Program memory
Standard ROM ---- (Battery backup not needed)