Balluff - BVS CA-MLC / BVS CA-IGC Technical Documentation
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Very long exposure times are possible with BVS CA-MLC/-IGC. For this purpose a special trigger/IO mode is used.
You can do this as follows (pseudo code):
TriggerMode = OnHighExpose TriggerSource = DigOUT
ImageRequestTimeout_ms
either to 0 (infinite)(this is the default value) or to a reasonable value that is larger than the actual exposure time in order not to end up with timeouts resulting from the buffer timeout being smaller than the actual time needed for exposing, transferring and capturing the image:ImageRequestTimeout_ms = 0 # or reasonable value
Now request a single image:
imageRequestSingle
Then the digital output is set and reset. Between these two instructions you can include source code to get the desired exposure time.
# The DigOUT which was chosen in TriggerSource DigitalOutput* pOut = getOutput(digital output) pOut->set(); # Wait as long as the exposure should continue. pOut->reset();
Afterwards you will get the image.
If you change the state of corresponding output twice this will also work with ImpactControlCenter.