RE: New Focus Motor support

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

John,

 

My initial response was only half-right.  It is true that drvPMNC87xx.cc is a Model 1 driver and 874xMotorDriver.cpp is a Model 3 driver.

 

But more importantly:

 

874xMotorDriver.cpp is only for the 874x controllers, as seen in the file name and in this comment in the source files:

         “Motor driver support for the NewFocus 874x series of controllers”

 

drvPMNC87xx.cc is only for the 875x controllers as seen from these definitions in drvPMNCCom.h

 

/* Picomotor Network Controllers */

enum PMNC_model

{

  PMNC8750,

  PMNC8752

};

 

 

/* Picomotor Drivers - use DRT Command to determine */

enum PMD_model

{

  PMD8753=1,        // 3 channel open-loop

  PMD8751=2        // 1 channel closed-loop

};

 

So you must use drvPMNC87xx.cc for the 8753.

 

Mark

 

 

From: John Dobbins <john.dobbins at cornell.edu>
Sent: Monday, November 23, 2020 9:26 AM
To: Mark Rivers <rivers at cars.uchicago.edu>
Cc: tech-talk at aps.anl.gov
Subject: Re: New Focus Motor support

 

Also, I learned that the 8743 and the 8753 have different command sets . I discovered this when I actually tried to move motors on the 8753.  

 

The newfocus8742.asyn.st.cmd.linux-x86  did not work with 8753 (it was sending 8742 type commands) while the st.cmd does.  

 

Am I overlooking something in configuration?  Can the Model 3 driver work with the 8753?

 

John

 

 

---

From: Mark Rivers <rivers at cars.uchicago.edu>
Sent: Saturday, November 21, 2020 6:05 PM
To: John Dobbins <john.dobbins at cornell.edu>
Cc: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Re: New Focus Motor support

 

Hi John,


/motor/modules/motorNewFocus/newFocusApp/src contains 2 drivers:


- An old Model 1 driver in these source code files:

    - devPMNC87xx.cc

    - drvPMNC87xx.cc.

    - drvPMNCCom.h

    - NewFocusRegister.cc

    -  NewFocusRegister.h


- A new Model 3 in these source code files:

    - 874xMotorDriver.cpp

    - 874xMotorDriver.h


newfocus8742.asyn.st.cmd.linux-x86 is for the new Model 3 driver.


st.cmd and PMNC87xx.cmd are for the old Model 1 driver.


Mark



________________________________
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of John Dobbins via Tech-talk <tech-talk at aps.anl.gov>
Sent: Saturday, November 21, 2020 3:24 PM
To: tech-talk at aps.anl.gov
Subject: New Focus Motor support

All,

I am using a New Focus motor for the first time. I have an 8752 controller. looking in

motor-R7-1/modules/motorNewFocus/iocs/newFocusIOC/iocBoot/iocNewFocus

I see two IOC start scripts.

st.cmd which loads PMNC87xx.cmd

and

newfocus8742.asyn.st.cmd.linux-x86


The later appears to work for my controller.  What is the other?

Thanks,

John Dobbins

Research Support Specialist
Cornell High Energy Synchrotron Source
Cornell University

www.chess.cornell.edu<http://www.chess.cornell.edu>