Experimental Physics and
Industrial Control System

Thank you Eric, Mark, Ryan, Tomas, Ralph, Bob and Richard!
(I hope I didn't forget anybody)

It looks like Moxa devices are used in several places and different
devices in the places that don't use those (Ralph, I remember those
DECservers as well. They didn't even have command line recall. Emulex
was a huge progress over those) - thanks for mentioning the problems
with them as well, Richard.

I did some manual reading on our WTI CMSs after I sent out that email
and found that the timeout can be configured for each port which may
work for us but it may take a while to get it to work properly for
all devices. Devices you read out with normal EPICS scan rates are
easy to deal with with relatively short timeouts (I just set the
timeout on one of our Lakeshores to 1 minute and that appears to
work). Devices you talk to from EPICS once in a blue moon, which I
consider possible in case of some motors, may be a different problem.

So far all our IOCs are hardware IOCs, so a card in a Linux box
wouldn't work for us. The devices aren't necessarily where the
IOCs are and won't be when we use soft IOCs either (this is one
such occasion: https://scuba2.files.wordpress.com/2010/11/289.jpg)

Thanks again,
Maren

On 01/11/16 01:28, bob dalesio wrote:

NSLS II also used Moxa devices to muster all serial interfaces. Contact
Huijuan Xu at NSLS II. She is the design/implementation engineer for
those devices.

On Mon, Jan 11, 2016 at 3:18 AM, Mazanec Tomáš
<[email protected] <mailto:[email protected]>> wrote:

    Hi

    We are happy with MOXA Nport so far.
    NPort 5250A with 2 channels ; and NPort IA5450AI with 4 channels is
    more industrialized.
    Both implement a lot of communication modes and features.

    Tomas

    ________________________________________
    Od: [email protected]
    <mailto:[email protected]>
    [[email protected]
    <mailto:[email protected]>] za uživatele Maren Purves
    [[email protected] <mailto:[email protected]>]
    Odesláno: 9. ledna 2016 2:29
    Komu: EPICS tech-talk
    Předmět: terminal server/serial server/console management switch
         recommendations?

    Hi all,

    we have a number of serial line devices connected to a number
    of IOCs (at 2 telescopes) examples are Lakeshore, Omega DP1s,
    WXTs, Edwards gauges. Of old we are/were using Emulex terminal
    servers but these things are getting up there in the years and
    we lost a few already and had to replace them and we expect more
    of them to go.

    We have a few WTI CMS console management switches of an older
    generation that we use to access computer consoles but I'm
    not sure we currently have any measuring devices attached to
    them. They work well with computers, including IOCs, once they
    are set up to not use ^X as their disconnect character.

    More recently we got some of these of a newer generation and we
    have problems with them. One of the problems I have seen is that
    even after configuring all ports to not have ^X as their disconnect
    character they'll still send out ^Xs, and another problem that we
    have a lot more frequently is that they don't drop the old connections
    when one reboots an IOC. Currently the fastest way to reboot an IOC
    is to halt it, manually disconnect all the serial ports and then
    boot.

    What are other people using, and would you recommend what you're
    using or don't you?

    Thanks,
    Maren

References:

terminal server/serial server/console management switch recommendations? Maren Purves

RE: terminal server/serial server/console management switch recommendations? Mazanec Tomáš

Re: terminal server/serial server/console management switch recommendations? bob dalesio

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