Experimental Physics and
Industrial Control System

Hi all,

 

To provide one possible solution that tries to act on what Mark and Steven suggested, could I have some thoughts on whether the below (untested) configurations look like a valid/reasonable approach to this problem?

 

Note below, I tried “passive” SCAN in hopes that this would let the record always be processed once every single time caput was called. I’m not sure if that’s needed or appropriate.

Also, I put “in 0” at the end of each proto function to have the PV represent whether the command was currently running, along the lines of Steven’s message.

 

Database:

 

record(bi,"MYLED:IncreaseBrightness"){

    field(DESC,"Slightly increase the LED brightness. Set this PV to True to activate a single adjustment; will automatically reset to False upon completion.")

    field(SCAN,"Passive”)

    field(DTYP,"stream")

    field(ONAM,"increasing”)

    field(ZNAM," inactive”)

    field(INP,"@led.proto IncreaseBrightness led_io")

    }

 

record(bi,"MYLED:DecreaseBrightness"){

    field(DESC,"Slightly decrease the LED brightness. Set this PV to True to activate a single adjustment; will automatically reset to False upon completion.")

    field(SCAN,"Passive”)

    field(DTYP,"stream")

    field(ONAM,"decreasing”)

    field(ZNAM,"inactive”)

    field(INP,"@led.proto DecreaseBrightness led_io")

    }

 

Proto:

 

IncreaseBrightness {

        out "IncreaseBrightness";

        in 0;

    }

 

DecreaseBrightness {

        out "DecreaseBrightness";

        in 0;

    }

 

 

Thanks,

 

Scott