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NORM_X?HELP ME!!!

2/15/2014 11:46 AM	Rate (0)
edwin saputra Experienced Member Joined: 2/12/2014 Last visit: 5/28/2023 Posts: 158 Rating: (0)	i'm using CONVERT (Uint to Real), when i short it, i think this value supposed 0,but this value is 22769 for (%IW184). Why?

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2/15/2014 12:50 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (1000)	edwin saputra .... Why? Why? Because you do something wrong. Check propper connection and configuration of the analog input.
IBN-Service Posts: 8946 Rating: (1000)
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2/15/2014 1:14 PM	Rate (0)
edwin saputra Experienced Member Joined: 2/12/2014 Last visit: 5/28/2023 Posts: 158 Rating: (0)	the configuration of the analog input => -5volt/+5ovolt

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2/17/2014 2:12 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 3/18/2025 Posts: 15726 Rating: (2488)	edwin saputra the configuration of the analog input => -5volt/+5ovolt So when you connect the M terminal to the AI+ terminal, you get a large integer? With 0V to the input, you should have (with an INT) approx. 0 counts on the input. If you apply a AA battery across the input and M, do you get the proper counts for 1.5/5 * 27648?
	science guy
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2/18/2014 5:30 AM	Rate (0)
edwin saputra Experienced Member Joined: 2/12/2014 Last visit: 5/28/2023 Posts: 158 Rating: (0)	yes, i get a laerge integer. when i apply a battery 1,5 volt Uint is 1539, 3 volt Uint is 9747, 4,63 volt Uint is 20947 =>> (non-linear). I want to get value Uint 0 when the analog input haven't voltage, and Uint 27648 when i give a voltage 5 volt to analog input. How to get value like that?

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2/18/2014 8:03 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 3/18/2025 Posts: 15726 Rating: (2488)	edwin saputra yes, i get a laerge integer. when i apply a battery 1,5 volt Uint is 1539, 3 volt Uint is 9747, 4,63 volt Uint is 20947 =>> (non-linear). I want to get value Uint 0 when the analog input haven't voltage, and Uint 27648 when i give a voltage 5 volt to analog input. How to get value like that? Is your 24VDC power supply common bonded/grounded to the same potential as the plc M and Analog input M terminals? Is there a voltage other than ~0VDC between any PLC m terminal and ground?
	science guy
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