In the ab CJ1W-PDC15 of CJ1W-PDC15 CP1L batteries to run, you want to write to flash in the DM data after the change, according to the CP1L manual (page: -66) the practice of setting A751, A752, A753 value, electric read flash data set in the PLC, but still can not change the flash data, each time the power on DM region is the first time the value written to flash. Please heroes pointing.