SEQUENCE CONTROLLER, MAINTENANCE METHOD FOR MAINTENANCE AREA IN THE SAME DEVICE, AND RECORDING MEDIUM FOR STORING COMPUTER PROGRAM FOR EXECUTING THE SAME METHOD
PROBLEM TO BE SOLVED: To realize the maintenance area of data to be used by a sequence controller in an inexpensive form in which any maintenance is not necessary. SOLUTION: This device is constituted of a holding area 2A formed in a data memory 2 for holing data at the time of the end of sequence c...
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