s7-200 plc to EM 231 TC

turbo1325

Member
Join Date
Dec 2007
Location
Montana
Posts
6
Can anyone Help with the program logic needed for the s7-200 to read the EM 231 for temp control of a refridge unit. Can't find any sequence that might help me. The tips are very vague. Any help would be greatly appreciated.

Using s7-200 PLC with EM 231 Tc module with Type K thermocoupler and sending data to an HMI tp 177 Micro touchpad.
 
The EM231 is an analog input module, not a temperature controller. You will need to write logic in the PLC (possibly a PID loop) to control an output (on another module) to control temperature. All the Em231 does is bring a temperature signal into the PLC, it's up to you what you do with it.

Check the following link, chapter 4 explains addressing, chapter 6 includes PID, and chapter 15 explains PID tuning.

http://support.automation.siemens.com/WW/llisapi.dll/csfetch/1109582/S7-200_E.pdf?func=cslib.csFetch&nodeid=1113428&forcedownload=true
 

Similar Topics

HI i would like to know how to get a variable that will store the amount of times a program has been executed. The issue is I have 3 DBs for 1 FB...
Replies
2
Views
82
Hi. I’m trying to upload program from existing PLC S7-1200. Create new project in TIA v15.1 then upload. After upload successfully, go online but...
Replies
5
Views
220
Hi Guys, I am trying to establish communication over profinet between Siemens S7-1200 PLC as IO device and codesys plc as IO controller. But I am...
Replies
43
Views
2,859
Hello members, I have Siemens S7-1200 PLC (CPU 1214C AC/DC/Rly version 3.0) and I want to get backup from it. I know how the procedure works. I...
Replies
0
Views
138
Hi! Please share firmware for 6ES7212-1BE31-0XB0 https://support.industry.siemens.com/cs/nl/en/view/64789124
Replies
7
Views
746
Back
Top Bottom