Experimental Physics and
Industrial Control System

"Elder Matias" <[email protected]> · Wed, 29 Aug 2007 08:20:28 -0600

At the CLS we use Heidenhain Endat encoders on most of our insertion
devices.  The difficulty is the last time we looked there was no vendors
with a VME endat card.  We ended up having to use a carrier board that
allows you to install PC-104 cards in a VME crate.  If interested, Tony
Wilson wrote the EPICS interface software.  I can provide you with the
AutoCAD drawings for the front-panel and the wiring we use, all the
electronics is commercial off-the-shelf equipment.

Dynatem DPC104 - Is the PC104 carrier board for VME.
MAZeT MMI200 - Is the Endat encoder card.

Elder

--------------------
To: [email protected] 
Subject: Heidenhain Absolute Multiturn Rotary Encoder 
From: Steve Lewis <[email protected]> 
Date: Wed, 29 Aug 2007 06:58:39 -0700 
At LCLS, we have a requirement for a Heidenhain model ROC-425 or ECN-425
absolute multi-turn rotary encoder. It comes with two types of 'serial'
interface: SSI, or EnDat22.

Are any EPICS users familiar with this model? I am just learning about
these interfaces. If either of them goes directly to a standard serial
port, then asyn support would seem to be ideal.

Thanks in advance for any advice or examples.
--
______________________________________________________________
Stephen A. Lewis                        |
Linac Coherent Light Source             | [email protected]
Lawrence Livermore National Laboratory  | Tel: 925.423.4751
7000 East Ave, L-210                    | FAX: 925.423.1488
Livermore, CA 94550                     | http://www.llnl.gov

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System