User`s manual

Part names and settings of universal CPU modules CPU modules
MELSEC System Q, Hardware 4 – 43
4.5.4 Latch clear operation
Latch clear (switch off or set to 0) can be performed for stored Latch data set by parameters.
The Universal model QCPUs are not equipped with a switch for latch clear operation.
Latch clear can only be performed by the remote latch clear operation of GX (IEC) Developer.
NOTE The valid/invalid for latch clear in the clear range of latch clear operation can be set for each
device. The setting can be mode in the device setting of the PLC parameter.