Re: Attocube AMC300 driver?

["Lang, Keenan C. via Tech-talk" <tech-talk at aps.anl.gov>]

Pete,

I did just a quick set up of a scientist's AMC100, which should use the same json REST api.

However, it's using the scriptable motor driver (https://github.com/epics-motor/motorScriptMotor) due to me not wanting to deal with parsing a bunch of JSON in c/c++. So you'll need the master branch of that motor module and to build motor against the lua epics module (https://github.com/epics-modules/lua).

If you still would want to use it, I have the script here: https://github.com/keenanlang/Lua-Scripts/blob/master/motors/AMC100.lua

You'll also need to grab json.lua from here: https://github.com/rxi/json.lua (put it in your working directory or edit line 3 of AMC100.lua to add the path to the package search path)

Then the startup command calls are:

     drvAsynIPPortConfigure("AMC100-1_IP", "<INSERT IP HERE>:9090", 0,0,0)
     ScriptControllerConfig("AMC100-1", 2, "scripts/AMC100.lua", "PORT=AMC100-1_IP")

The support assumes a motor that has an encoder. If you're dealing with open loop steppers, it should just be a matter of switching the api method names in the move and poll functions (lines 46 and 79).

Or, at the very least, since the scriptable motor is pretty much 1-to-1 compared to a standard model 3 driver, it shouldn't be too bad to convert the logic to a c++ driver using https://github.com/nlohmann/json .

Keenan Lang

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From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Leicester, Pete (DLSLtd, RAL, LSCI) via Tech-talk <tech-talk at aps.anl.gov>
Sent: Friday, July 16, 2021 9:47 AM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Attocube AMC300 driver?

 

Just wondering has anyone already written an EPICS driver for an Attocube AMC300?

 

AMC300 piezo motion controller (attocube.com)

 

Pete

 

 

Pete Leicester

Senior Software Systems Engineer

Diamond Light Source Ltd

 

 

 

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