4/15/2019 11:45 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello altonji; First you meed to use a 6ES7231-7PD22-0XA0 module for Thermocouples. Next you need to confogure the module for the sensor you are using, using the dipswitches on the module. The seceenshot belo shows the different settings, taken from this manual: S7-200 System manual https://support.industry.siemens.com/cs/ww/en/view/1109582 The next step is to read the raw analog value from the TC and scale it. As you can see in the second part of the screenshot below, the raw value is a multiple of 10 of the actual temperature reading. So a raw value of 1234 must be translated to a temperature of 123.4 (the units are set via the dipswitches). Divide by 10.0. The following thread discusses the same issues. EM231 (A!4xTC) mofule addressingTo see the temperature value in your display, move the result to a tag connected to the operator screen and show it on the screen (input field). Hope this helps, Daniel Chartier |
This contribution was helpful to1 thankful Users |
4/16/2019 3:10 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello Altonji; The closest I can give you for this type of application is Tips and tricks #46 for the S7-200, Using TCs. The files attached below are extracted from my downloaded version of the S7-200 Tips and Tricks. The newest version can be found on the following link: https://support.industry.siemens.com/cs/ww/en/view/1232912 You will find a mwp project inside the zip file for this application, along with the project description in Word. Once you have acquired and scaled the temperature measurement it is your job to send the data to VD10 or whatever address you need to transfer it for display on your panel. Hope this helps, Daniel Chartier AttachmentTip #46 Using TCs.zip (316 Downloads) |
Last edited by: dchartier at: 4/16/2019 3:13:12 PM |
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4/17/2019 9:53 PM | |
Joined: 3/9/2018 Last visit: 8/31/2024 Posts: 189 Rating: (14) |
S7-200 Programmable Controller System Manual > PLC Concepts `-----> Accessing Data in the Memory Areas `-----> Analog Inputs: AI * Find the format used for AI (analog input). * Find the format used for VD100. * Find the instruction you need to use to get the value to VD100 |
4/20/2019 6:10 PM | |
Joined: 12/6/2016 Last visit: 6/12/2023 Posts: 57 Rating: (0) |
thx for all |
Al-Nassim Company |
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