Experimental Physics and Industrial Control System
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Hi Kaz,
What you are seeing is normal, and is a consequence either of a limitation of the camera, or because you have set a mode that make the feature in question non-writable.
2021/12/14 17:53:02.701 Param[BIN_X] GenICamFeature::write: node BinningHorizontal is not writable
This is because those cameras cannot independently change the horizontal and vertical binning. If you adjust BinningVertical
it will change both horizontal and vertical.
2021/12/14 17:53:02.971 Param[ACQ_TIME] GenICamFeature::write: node ExposureTime is not writable
That is because ExposureTimeAuto or another feature that controls ExposureTime is enabled. That can be controlled in the ADAravis OPI screen shown below.
2021/12/14 17:53:02.977 Param[ACQ_PERIOD] GenICamFeature::write: node AcquisitionFrameRate is not writable
That is because either AcquisitionFrameRateAuto is enabled (this is in a camera-specific OPI screen) or AcquisitionFrameRateEnable is disabled (That
can be controlled in the ADAravis OPI screen shown below).
2021/12/14 17:53:02.982 Param[GAIN] GenICamFeature::write: node Gain is not writable
That is because GainAuto is enabled. That
can be controlled in the ADAravis OPI screen shown below.
If you still have problems, please send screen shots of your OPI screens.
Mark
From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Gofron, Kazimierz via Tech-talk <tech-talk at aps.anl.gov>
Sent: Tuesday, December 14, 2021 5:18 PM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Camera parameters not writable in ADAravis
Hi,
The ADAravis iocs reports that four camera parameters are not writable, and indeed they can not be changed from the CSS opi.
I am seeing it for both GigE and USB3 cameras from PointGray/FLIR.
Camera models:
- Blackfly BFLY-PGE-50S5C
- GS3-U3-51S5C-C
OS: Redhat 8.4
ADCore: 3.11.0
ADAravis: master {after R2.2.1}
aravis: 0.8.20
EPICS base: R7.0.6
{relevant ioc report about non-writable parameters}
epicsThreadSleep(1.0)
2021/12/14 17:53:02.701 Param[BIN_X] GenICamFeature::write: node BinningHorizontal is not writable
2021/12/14 17:53:02.971 Param[ACQ_TIME] GenICamFeature::write: node ExposureTime is not writable
2021/12/14 17:53:02.977 Param[ACQ_PERIOD] GenICamFeature::write: node AcquisitionFrameRate is not writable
2021/12/14 17:53:02.982 Param[GAIN] GenICamFeature::write: node Gain is not writable
I am not sure if the limitation is originating from the auto settings in the camera (exposure/gain/...), or somewhere else. I did try to modify few camera auto [gain|exposure] settings from 'camera-sepcific features' screens, but it did not resolve the
issue.
Perhaps others have seen this before.
Kazimierz
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ANJ, 15 Dec 2021 |
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