Experimental Physics and
Industrial Control System

I think that you need two helper records.

(this is a copy of our motor-business "as is", you need to adjust the macros and such)

One record that is "filled" by the hardware (driver), like below, which is an input record:

record(ai, "$(PREFIX)$(MOTOR_NAME)-CfgVELO-RB")

{

    field(DTYP, "asynFloat64")

    field(PREC, "$(PREC)")

    field(INP,  "@asyn($(MOTOR_PORT),$(AXIS_NO))CfgVELO-RB")

    field(SCAN, "I/O Intr")

}

#########

The next helper record is an output record, that "pushes" it's value into the field

of the "wanted record", specified in the OUT field:

record(ao, "$(PREFIX)$(MOTOR_NAME)-CfgVELO-RB_")

{

    field(PREC, "$(PREC)")

    field(DOL,  "$(PREFIX)$(MOTOR_NAME)-CfgVELO-RB CP")

    field(OUT,  "$(PREFIX)$(MOTOR_NAME).VELO")

    field(OMSL, "closed_loop")

}

HTH
/Torsten

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