Mitsubishi Electric MELSEC iQ-R Series - Setting Latch on Devices

29 LATCH FUNCTION
29.1 Latch with Battery
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Setting latch on devices
Multiple latch ranges can be set for a device type. A total of 32 latch ranges between latch (1) and latch (2) can be set.
However, the ranges of latch (1) and latch (2) must not overlap.
Setting a latch range
Set the device to latch, its range, and the latch type.
Operating procedure
"Device Setting" window
1. Click "Detailed Setting" on the "Device Setting" window.
[CPU Parameter]  [Memory/Device Setting] 
[Device/Label Memory Area Detailed Setting] 
[Device Setting]  [Detailed Setting]
2. In the "Device Setting" window, select the type of latch
for the target device. The "Latch Range Setting"
window is displayed.
"Latch Range Setting" window
3. Check the tab for the latch type, select the device to set
and set the latch range (Start, End).