Hmi qu

[abdallh]

HI every one

i need to know how i can interfacing any HMI with plc s7 200 in software program (micro win)

 

[BryanG]

I might not be understanding your question properly. Normally when you attach an HMI to PLC you don't need to make changes to the PLC program. The HMI asks the PLC for data. However, I know that some simple Siemens HMIs are programmed via the PLC software. Maybe if you can say which HMI you want to use we can help more.

 

[abdallh]

basically i need to display temperature how i can do it using s7 200

 

[BryanG]

Using an HMI keeps it simple but there are cheaper methods such as LCD displays with serial inputs.

Typical HMIs
http://www.beijerelectronics.com/web/web_en_be_com.nsf/alldocuments/51A1C33F56A2D154C125786A0027EE3A

http://www.redlion.net/Products.html

Buy or download the programming software.
Buy or make a cable for programming the HMI.
Make a cable to connect the HMI to the PLC.
Create the PLC program noting the memory address and data type that contains the temperature data.
Transfer the program to the PLC.
Create the HMI program using the memory address and data type from above.
Transfer the program to the HMI.
Connect the HMI to the PLC.
Stand well back and switch on the power.