5/5/2015 4:59 PM | |
Posts: 16 Rating:
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Any one please give solution for following questions. 1)Hardware configuration for getting 10 analog inputs in SIMATIC S7-3002) Program for reading the pressure from quantity-10 gauges using analog communication. All the
gauges should have one generic function block which is called
up for 10 times |
5/5/2015 7:37 PM | |
Joined: 9/27/2006 Last visit: 9/10/2024 Posts: 12282 Rating:
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Hello Licary; Setting up and programming analog input sensors requires a few steps: - selecting the appropriate sensors for your application, and determininig the type of analog signal that will be used to connect to the PLC (0-20 mA, 4-20 mA, 0-10V +/- 10 V...). - choosing the correct analog input card for your PLC, one that supports the analog signal provided by your sensor. This will often require some kind of configuration, either through the wiring, the positionning of a range module (on the side of the analog input card) or parametrization in the HJWConfig editor. You must find the appropriate documentation for your analog input module 9we can help you there). - connecting the sensors properly to the selected analog input card, respecrting shield and ground connections (again based on the documentation for the analog module). - finally, converting the raw values that the input sensors provide to the analog input module into engineering values that actually mean something to your project. Say your sensor provides a 4-20 mA signal to the PLC. The PLC analog input card uses an electronic circuit named an A/D converter (analog-to-digital) to transorm this into a numerial value 0-27648. That is 4 mA will become a value 0, 20 mA will be represente dby the number 26748, will all values in between being proportionnal to this range. But 0-27648 does not mean much to you. You would rather have 0-100%, or 10-350 gpm, of 200-20000 cfm... There is a standard block for this in the Siemens program Library, FC 105 "SCALE". when you are rady to program it we can also help you. In the mean time here is a bit of information for you. SIMATIC S7-300 S7-300 Module data Look at the chapters on Analog representation and modules for detailes information on the hardware and configurations available for a S7-300. and finally, for a complete tutorial on analog value processing, open the following link, and look at this module Hope this helps, Daniel Chartier
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5/8/2015 5:55 PM | |
Posts: 16 Rating:
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Thank you very Much Dchatier I think you are Expert in PLC Programming I need one more help In Siemens step7 1)May i know how to setup hardware for 10 analog input and 10 analog output in CPU 315 DP 2 if its not possible means which CPU setup is convenient for 10 analog input/output Analog Communication May i know for this one we need Scale or some other option.
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5/8/2015 8:17 PM | |
Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating:
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Hello Licary, Sure that you can control 10 Analog Input and Output with CPU 315 ... But what you want to do? Our Expert dchartier, he has already given to you information as scale the values. |
Last edited by: Ste39 at: 5/8/2015 8:38:22 PMDaniel faster :-) |
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