Experimental Physics and
Industrial Control System

Tim is correct.  If the URIP field is set to YES at boot-up
and the record pointed to by RDBL (i.e., the encoder record)
has it's STAT field set to UDF (undefined) when the motor
record is initialized, then the motor record reads zero from
RDBL and sets DVAL to zero.  (I recreated the problem using
V4.4 of the motor record, but I don't think that matters.)

David Maden wrote:
> when I boot the
> ioc, the motor record does not seem to pick up the initial value of the encoder
> and its DVAL field is zero. I do not seem to be able to restore the DVAL field
> of the motor at iocInit time via the save_restore mechanism.
>

References:

Archive for Tech-Talk Leonard J. Reder

Re: Archive for Tech-Talk Marty Kraimer

Motor Record with Encoder David Maden

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