Experimental Physics and
Industrial Control System

Dear all

I have three records, when the value in the record "b" is "1" the value in the record c is calculated and the record d is updated as well. Upto this the things are working fine. But I want one more thing that when the b=0, the value of record "c" should become the zero (that is happening) but it should not send the value zero to the record d means at b=0 record c should be updated but it should not update the record d. I want to keep the last value of record d so that when b=1 again then record d should start from the last value that it will hold. Please tell me how to do this?

record (bi,"b"){

}

record (calcout, "c"){

field(SCAN, "1 second")

field(INPA, "c")

field(INPB,"b")

field(INPC,"1")

field(CALC,"B=1?A+C:0")

field(OUT,"d PP")

}

record(calcout, "d"){

field(INPA, "c")

field(INPB,"1")

field(CALC,"A+B")

}

regards,

Tasaddaq