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

Subject: dm and edm problems with CA gateway
From: Rolf Keitel <[email protected]>
To: tech_talk <[email protected]>
Date: Fri, 04 Mar 2005 11:15:00 -0800
**** Has anybody else experienced these problems? ****

When we are operating sliders to write process variables through the CA gateway, every now and then on releasing the sliders the gateway writes huge (and I mean r e a l l y huge positive or negative) numbers to the IOC, which set the PV to the upper or lower end of the allowed range.
This never happens if you don't use the gateway.


We observed this behaviour both with dm and with edm (running on Solaris or Linux Redhat 9).
The gateway is running on a Linux (Redhat 9) box. Several gateway releases up to Beta18 (built against EPICS R3.14.6) exhibit this behaviour.


We lost a couple of devices, where a user hadn't specified a proper DRVH for the setpoint.
We have taken the gateway out of operation until this is resolved.


- rolf -

--
+-------------------------------------------------+
| Rolf Keitel, TRIUMF         Tel: (604) 222-7453 |
| Group Leader ISAC Controls  Fax: (604) 222-7307 |
| and Electronics Development                     |
| Vancouver, B.C., Canada                         |
+-------------------------------------------------+


Replies:
Re: dm and edm problems with CA gateway Ralph Lange
RE: dm and edm problems with CA gateway Jeff Hill

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