Omron CQM1H - PROGRAM Programming Manual page 228

Programmable controllers; inner boards

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Work Bits (Internal Relays)

Differentiated Conditions

mine output conditions for IR 10000, IR 10001, and IR 10002, i.e., to turn the

outputs allocated to these bits ON or OFF.

Work bits can also be used if differential treatment is necessary for some, but

not all, of the conditions required for execution of an instruction. In this exam-

ple, IR 10000 must be left ON continuously as long as IR 001001 is ON and

both IR 00002 and IR 00003 are OFF, or as long as IR 00004 is ON and IR

00005 is OFF. It must be turned ON for only one cycle each time IR 00000

turns ON (unless one of the preceding conditions is keeping it ON continu-

This action is easily programmed by using IR 22500 as a work bit as the oper-

and of the DIFFERENTIATE UP instruction (DIFU(13)). When IR 00000 turns

ON, IR 22500 will be turned ON for one cycle and then be turned OFF the

next cycle by DIFU(13). Assuming the other conditions controlling IR 10000

are not keeping it ON, the work bit IR 22500 will turn IR 10000 ON for one

DIFU(13) 22500

Address Instruction

Address Instruction

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