mike6
New Member
Posts: 2
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Post by mike6 on Sept 13, 2021 3:30:57 GMT -5
Hi, Model 218 has only 8 sensor inputs and 8 user curves and as far as I understand from an user manual sensor 1 can only use an user curve from position 1 (21), s2 - uc2, etc., in can not be s1 - uc4. Since in our lab setup we used to change sensor positions very often we have to change curves accordingly every time running a test. I was thinking is it possible to load curves automatically when starting monitoring by first removing them all (CRVDEL) and then loading appropriate files into their positions. Is there any other way to do this than loading it point by point (CRVPT)?
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Post by Lake Shore Jeff M on Sept 13, 2021 7:17:28 GMT -5
As you have identified, the Model 218 requires that a sensor curve for a given input must be loaded into a specific curve location unless you are using one of the standard sensor curves. The easiest way to move curve between inputs would be to use our Curve Handler software, however, it can be done using the commands you mention, however, there is no other way than load the curve points one at a time using the CRVPT command.
If this is something you do on a very regular basis, I would recommend replacing the Model 218 with a Model 224-12 Monitor. The Model 224-12 allows you to assign any curve storage location to any of the 12 inputs as long as the curve format is correct for the configured sensor type.
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mike6
New Member
Posts: 2
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Post by mike6 on Sept 13, 2021 8:23:25 GMT -5
Thank you Jeff, this is what I was afraid off. I have been using Curve Handler exactly for this, but do you think that this software is also loading a curves point by point (CRVPT in a loop)?
Yes, I see now that 224 would be a better choice, but unfortunately it wasn't my decision when a setup was built,
now I'm only developing an operator software.
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Post by Lake Shore Jeff M on Sept 13, 2021 8:47:17 GMT -5
Yes, that is how Curve Handler works, when you tell it to write the curve to a location, it starts by sending a CRVDEL command for the selected location. Next it sends the CRVHDR command and follows with individual CRVPT commands for each point in the curve table.
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