RE: Looking for support for Eurotherm 2404 PID

["Mark Rivers" <rivers@cars.uchicago.edu>]

Steve,
 
I just looked at the Eurotherm online documentation.  The 2416 and 2404 can each be ordered with several different communications protocols (Modbus, El-Bisync).  It is encoded in the part number (YM=2-wire RS485 Modbus, etc.).
 
Looking at the Modbus manual for the 2400 series:
 
http://www.eurotherm.com.au/control/product/comms/2000_mb_m_ha026230_2.pdf
 
it looks like my Modbus driver should work.  You just need to define the register addresses for each function in your database.
 
Mark
 

________________________________

From: tech-talk-bounces@aps.anl.gov on behalf of David Maden
Sent: Sat 5/17/2008 10:43 AM
To: Steve Lewis
Cc: Keith Kishiyama; tech-talk@aps.anl.gov
Subject: Re: Looking for support for Eurotherm 2404 PID



Steve Lewis wrote:
> The Eurotherm 2404 PID is a temperature controller that uses the Modbus
> protocol over a serial .  Does anyone have a streamdevice/asyn protocol
> or any other device/driver support for it?

We are controlling a couple of furnaces via a Eurotherm 2416 with RS-232-C
interface. I don't know if it uses the same protocol as the 2404 though,
but our code might be a starting point for you.

The protocol of the Eurotherm 2416 includes BCC checksums, which Dirk
Zimoch's stream driver couldn't handle at the time I wrote the EPICS
support. As a result, our code is flat EPICS database of soft records with
an snl program calling functions to send and receive messages to the device
via a pseudo-terminal VxWorks device driver.

Regards, David
--
                                David.Maden@psi.ch
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