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<== Date ==> <== Thread ==>

Subject: Gamma DIGITEL MPCq: mismatch after 0 bytes ""
From: "J. Lewis Muir via Tech-talk" <tech-talk at aps.anl.gov>
To: EPICS Tech-Talk <tech-talk at aps.anl.gov>
Date: Wed, 8 Jul 2026 18:22:18 -0500
Hi, Tech-Talkers!

I'm using the driver at

  github.com/epics-modules/ip/blob/master/ipApp/Db/MPC_Ethernet.template

to control Gamma DIGITEL MPCq devices connected via Ethernet, and it
mostly works, but I sometimes get errors on the IOC console like the
following (it seems to happen for all of them, so not limited to just
one device), and I'm wondering, does anyone know what might be going
wrong and how to fix it?

----
2026/07/08 11:50:09.782653 GAMMA5 17ida:ip9:CUR: Input ">OK 00 1.1E-04 AMPS<0d><0d><0a>>..."
2026/07/08 11:50:09.782668 GAMMA5 17ida:ip9:CUR: mismatch after 0 bytes ""
2026/07/08 11:50:09.782674 GAMMA5 17ida:ip9:CUR: got ">OK 00 1.1..." where "OK 00 " was expected
----

This same pattern of errors occurs for various values (e.g., CUR,
GAUTOS, PRES, SIZE, VOLT, and STAT).

Thanks!

Lewis

Replies:
Re: Gamma DIGITEL MPCq: mismatch after 0 bytes "" LiangChih Chiang via Tech-talk
Re: Gamma DIGITEL MPCq: mismatch after 0 bytes "" Maren Purves via Tech-talk
Re: [EXTERNAL] Gamma DIGITEL MPCq: mismatch after 0 bytes "" Baily, Scott A via Tech-talk

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