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Why this small output from my FC105 converter?? (screendump)

Created by: kaspergl at: 8/6/2010 1:22 PM (3 Replies)

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8/6/2010 1:22 PM	Rate (0)
kaspergl Posts: 39 Rating: (0)	I know my ad-convertion is doing it right (type k thermocouple --> 4-20mA signal : 0-60 degrees celcius) in the MOVE block, but I can understand the very small output from the FC105 block. Is something missing? Attachment FC105 problem.JPG (222 Downloads)
kaspergl Posts: 39 Rating: (0)
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8/6/2010 3:07 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/1/2023 Posts: 8596 Rating: (1140)	Dear kaspergl, Please change MD40 with MD44. Because MD40 and MW40 are the same area. Best regards, Wizard

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8/6/2010 3:10 PM	Rate (0)
TEBANCH Silver Member Joined: 3/25/2008 Last visit: 1/28/2022 Posts: 232 Rating: (19)	kaspergl I know my ad-convertion is doing it right (type k thermocouple --> 4-20mA signal : 0-60 degrees celcius) in the MOVE block, but I can understand the very small output from the FC105 block. Is something missing? Hello Kaspergl. First to all i can see in your screen shoot that you are susing mw40 to get the RetVal output from FC105, and also you are moving the out of FC105 to MD40. That is not a good practice since you are overlaping the memory areas (MW40 means a memory area that starts on MB40 and ends in MB41, MD40 means a memory area that starts on MB40 and ends in MB43). Second place try to increase the input value for PIW756, if you are simulating this code, and see eath happens with the "result". And finally check if you have to work in bipollar mode, it depends of your project and the type of field instrument you are using, also please reffer to the oline help for FC105, to get it you just need to select the block in your LAD editor and then press F1. I hope this helps.
	Keep working!
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8/9/2010 8:05 AM	Rate (0)
kaspergl Posts: 39 Rating: (0)	Thank you all for your answers!!! When I changed the adress value, all works perfect!
kaspergl Posts: 39 Rating: (0)
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This contribution was helpful to 2 thankful Users Wizard Jazz_M

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