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| 3/3/2013 8:51 AM | |
Joined: 12/27/2006 Last visit: 11/29/2024 Posts: 1197 Rating:
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U better can use a 24 V DC LOGO! Yuo can use 1 Analog input (pressuese) as many times you want in your programm. So 3 signals on 1 analog input is no problem. For the PT100 you need an expansionunit LOGO! AM2-RTD 6ED1055-1MD00-0BA1 Only 12 or 24 VDC powering. Yuo can connect 2 PT 100 to this unit. For futher doc : https://www.automation.siemens.com/mcms/programmable-logic-controller/en/logic-module-logo/Pages/Default.aspx?HTTPS=REDIR |
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| 3/3/2013 5:02 PM | |
Joined: 4/22/2010 Last visit: 11/18/2024 Posts: 5697 Rating:
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Hello, to read your pressure sensors you can use the logo with onboard AI, like this one; LOGO! 24, 8DI(4AI)/4DO, 200 BLOCKS
Problem is the Logo only supports 0 to 10V analog inputs, but you can use a 500 ohmresistor to solve that problem. How through external switching can you use a 0-10V analog input on a makeshift basis also for 0-20mA? The connection examples are for theS7 200 series but useable for the Logo too. If you want to use the full range of your sensors, you need signal converters 4-20mA -->0-10V for the temperature reading us the module as in above post. regards, Marcjan |
Last edited by: Marcjan at: 3/3/2013 5:15 PMLast edited by: Marcjan at: 3/3/2013 5:07 PMProblem solved? |
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| 3/5/2013 6:35 AM | |
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Posts: 7 Rating:
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thanks for the fast reply's but is there no module that can read 4-20 mA sensors???
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| 3/5/2013 7:16 AM | |
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Joined: 4/22/2010 Last visit: 11/18/2024 Posts: 5697 Rating:
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Hello, There is a module that can read 0 to 20mA signals, can offcourse also be used for 4-20mA. LOGO! AM2 EXPANSION MODULE, Regards, Marcjan |
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Problem solved? |
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| 3/5/2013 5:02 PM | |
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Posts: 7 Rating:
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thanks guy's you are great i'm gonna buy every thing and try it out... if i need more help, and i think i do, i will be back soon
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| 3/5/2013 5:10 PM | |
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Posts: 7 Rating:
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and i need to measure the RPM of th engine with a magnetic pick up??? witch one?? |
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