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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Value of Renishaw absolute encoder exceeds its maximum |
| From: | Chiang, Liang-Chih [江良志] via Tech-talk <tech-talk at aps.anl.gov> |
| To: | "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov> |
| Date: | Fri, 24 Mar 2023 03:32:30 +0000 |
|
Hello,
I use Galil DMC-4080 controller to read Renishaw absolute encoders(26 bits).
So far so good.
However, I conjectured that I encounter the situation where encoder's value
exceeds its maximum(2^26 = 67,108,864).
66,000,166 is the encoder value initially.
59,829,149 when going to negative limit switch, which is ok.
899,833 when going to positive limit switch, which is abnormal.
What could I do to handle this situation?
1. Replace the encoder scale.
2. Can I remedy it in EPICS? How? I have no idea.
Best regards.
LiangChih Chiang NSRRC Beamline Group email：chiang.lc at nsrrc.org.tw |