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Wiring the Analog Input module 6ES7 431-1KF10-0AB0

12/21/2006 4:57 PM	Rate (0)
B.O.Z Posts: 3 Rating: (0)	Hello all, First of all, i searched everywhere to find how to wire an analog input module 6ES7 431-1KF10-0AB0. [:(] I have a little problem how to wire an Analog Input Module for the S7-400 PLC. [:o] You see, i have here a testpanel which contains a voltmeter for reading out the amount of volts and a variable resistor to variate between 0 to 10V. I have attached an drawing image of the testpanel. [:D] I want to connect the 0 - 10V on an analog input module 6ES7 431-1KF10-0AB0 so the PLC canmeasure the 0-10V. I already connected the +10Von pin 11 (M+) andGND on pin 12 (M-). And i connected the+24V on pin3 (L+)andGND on pin48 (M). If i monitor the variables (IW512, IW514 etc.) they are switching between -380 and -16? I hope someone can help me out here. Many thanks :) -B.O.Z- Attachment test_panel.JPG (1187 Downloads)
B.O.Z Posts: 3 Rating: (0)
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12/22/2006 9:47 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/24/2025 Posts: 9097 Rating: (1202)	Hello, Here is a link to manual: http://support.automation.siemens.com/WW/view/en/1117740 see chapter 5.19 Is measuring module in right position? Is channel 0 disabled? Do not connect 24vdcand M (48) Have you seen this faq: http://support.automation.siemens.com/WW/view/en/20780602 Merry Christmas Wizard

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12/22/2006 4:23 PM	Rate (0)
B.O.Z Posts: 3 Rating: (0)	Thanks, i already solved it. The GND was not connected properly. When i reach the 10V the value IW514 (CH1) of the analog input module is 27648 When i reach 0V the value of IW514 (CH1) is 8? Is this correct? many thanks! and a Merry Christmas
B.O.Z Posts: 3 Rating: (0)
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12/22/2006 4:48 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 12/24/2025 Posts: 9097 Rating: (1202)	Hello, The value for 10 Volt is correct, but a voltage of 0 volt would give a value 0. So I think there is a small voltage left. See manual from previous post, chapter 5 for analog representation to see values when you have 0-10 volt. Merry Christmas Wizard

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12/23/2006 6:40 PM	Rate (0)
Late Platinum Member Joined: 1/7/2006 Last visit: 5/11/2025 Posts: 2705 Rating: (321)	Hi B, Thanks that you give the error thats made, so that others can learn about this. [8)] Normally there are real trouble with analog signals, most of the time it is wiring. [:cry:] Especially when PT100 are placed it is very importend that the Earth connections are very well, the measuring of mVolt is there what is measured. [:blush:]
	I hope that the answer will help, if you have still questions, don't hesitate to ask me. All the best, Late Never say never, think in solutions, not in trouble......
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