回覆: How to limit the range of setting value for longout record(DTYP asynInt32) in asynMotor?

[Chiang, Liang-Chih [江良志] via Tech-talk <tech-talk@aps.anl.gov>]

Thanks, Mark. I will do it as you said.

By the way,
is it possible to set the permitted range in C++ code, 
then let the record grab the range?

What is the usage of the following method in asynPortDriver?
  asynStatus getBounds(asynUser *pasynUser, epicsInt32 *low, epicsInt32 *high)


LiangChih Chiang
NSRRC


________________________________________
寄件者: Mark Rivers <rivers@cars.uchicago.edu>
寄件日期: 2019年1月15日 下午 05:31
收件者: Chiang, Liang-Chih [江良志]
副本: tech-talk@aps.anl.gov
主旨: Re: How to limit the range of setting value for longout record(DTYP asynInt32)  in asynMotor?

You can set the drive limits using the DRVL and DRVH fields. GUI limits can be set with LOPR and HOPR fields.

Mark


Sent from my iPhone

On Jan 15, 2019, at 10:18 AM, Chiang, Liang-Chih [江良志] via Tech-talk <tech-talk@aps.anl.gov<mailto:tech-talk@aps.anl.gov>> wrote:


Hi,  EPICS community.



I'm writing a motor controller driver based on asynMotor (C++ classes asynMotorController and asynMotorAxis).

To read/write some specific settings of the motor controller (which are integer values),

I implemented:

asynStatus readInt32(asynUser *pasynUser, epicsInt32 *value);

asynStatus writeInt32(asynUser *pasynUser, epicsInt32 value);



Then using longout records to access, something like following and it works:

record(longout, "$(P)Setting1"){

  field(DTYP, "asynInt32")

  field(OUT, "@asyn($(PORT) $(ADDR))SETTING1)

  field(PINI, "YES")

}



However, the setting has a range of permitted values. For example, the lowest value is 1 and the highest value is 30.



What is the conventional and suggested way to set this range?





Thanks. (This is my first post.)



LiangChih Chiang
National Synchrotron Radiation Research Center (NSRRC)