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Subject: Re: Further OMS PC78 questions
From: Mark Rivers via Tech-talk <[email protected]>
To: "James P. Withrow" <[email protected]>
Cc: Tech Talk EPICS <[email protected]>
Date: Thu, 4 Dec 2025 22:19:20 +0000
Please send the complete output from asynTrace on the underlying asyn port when the IOC starts up.

Mark

Sent from my iPhone

On Dec 4, 2025, at 3:21 PM, James P. Withrow via Tech-talk <[email protected]> wrote:


Yes, I do not receive a response from the controller when it is sending the three "WY" commands from the driver. I have seen the response before in this transaction, but I haven't been able to get it to reoccur so far. If I send "WY" to the .AOUT field of the asyn record for the port with caput, I do get back the expected response, and I can see the logging messages scroll past in the IOC. 

Is there something different that the driver is doing to send the commands vs. caput/caget?

I've put the line 'var "drvOmsPC68debug", 10' in my st.cmd file, but it doesn't appear to be generating any additional output

Thanks!
-Jim

Jim Withrow, Research Support Specialist - [email protected]
NE-CAT, Cornell University - https://necat.chem.cornell.edu
Advanced Photon Source, Sector 24
9700 S. Cass Avenue, Building 436 E001
Lemont, IL 60439

From: Peterson, Kevin M. <[email protected]>
Sent: Thursday, December 4, 2025 10:35 AM
To: James P. Withrow <[email protected]>; Tech Talk EPICS <[email protected]>
Subject: Re: Further OMS PC78 questions
 

References:
Further OMS PC78 questions James P. Withrow via Tech-talk
Re: Further OMS PC78 questions Peterson, Kevin M. via Tech-talk
Re: Further OMS PC78 questions James P. Withrow via Tech-talk
Re: Further OMS PC78 questions Peterson, Kevin M. via Tech-talk
Re: Further OMS PC78 questions James P. Withrow via Tech-talk

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