Omron SYSMAC C200HS Operation Manual page 121

Programmable controllers

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Reducing Complex

Differentiated Conditions

Work bits can be used to simplify programming when a certain combination of

conditions is repeatedly used in combination with other conditions. In the follow-

ing example, IR 00000, IR 00001, IR 00002, and IR 00003 are combined in a

logic block that stores the resulting execution condition as the status of IR

24600. IR 24600 is then combined with various other conditions to determine

output conditions for IR 00100, IR 00101, and IR 00102, 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 example, IR

00100 must be left ON continuously as long as IR 00001 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 continuously).

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