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Subject: Re: EPICS modulle for Piezosystem Jena's piezo controller NV 40/1 CLE
From: Torsten Bögershausen via Tech-talk <tech-talk at aps.anl.gov>
To: LiangChih Chiang <yehnan174 at gmail.com>, tech-talk at aps.anl.gov
Date: Mon, 18 May 2026 12:34:28 +0200
I would say, in opposite to other opinions,
that developing a model 3 driver makes sense.

However, the attached files are jpg and part
of the bigger spec.

The mentioned poll() function needs to find out,
where the positioner is - in closed loop.
If it is homed/referenced/calibrated.
That code needs to be somewhere,
either you use streamDevice or a proper model 3 driver.
In streamDevice you set up db files, which may feel easier
for some people.
The model 3 driver involves some C/C++ coding.
Please let me know, if you want help here.
BR
/Torsten



On 2026-05-18 09:40, LiangChih Chiang via Tech-talk wrote:
Dear EPICS mates,

I need to control a piezo actuator via
Piezosystem Jena's piezo controller NV 40/1 CLE,
which is very old and discontinued.

Its commands are extremely simple:(please see attach files)
i1  activate remote control
i0 deactivate remote control
cl  closed loop on
ol  closed loop off
rd  read a value (µm for closed loop, volt for open loop)
wr,<value>  write a value (µm for closed loop, volt for open loop)

I'm wondering if it's possible to develop
a "Model 3" motor driver for it.

Do you guys have experience for similiar suuch simple devices?



Replies:
Re: EPICS modulle for Piezosystem Jena's piezo controller NV 40/1 CLE LiangChih Chiang via Tech-talk
References:
EPICS modulle for Piezosystem Jena's piezo controller NV 40/1 CLE LiangChih Chiang via Tech-talk

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