11/28/2012 5:09 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2684) |
Hello Javier; The CPU 222 has no inbuilt analog inputs or outputs, so the only available analog output signal is on the EM 235. The attached document shows the specs for the EM 235 analog output. It is taken from the following manual: S7-200 System Manual So, are you sure that you are addressing the analog output correctly in the PID function? When you say the output pulses, what signal levels do you read (on a multimeter for example). Do the pulses appear only when the PID function is active, in AUTO mode, or also in MANUAL? Do they alsoappear when the PID function is disabled? Have you tried applying a steady analog signalfrom the processor program to the analog output address? Hope this helps, Daniel Chartier |
This contribution was helpful to2 thankful Users |
11/30/2012 4:20 PM | |
Posts: 53 Rating: (2) |
Be aware thet the PID wizard will give you two output options Analog and Digital. Maybe you are using Digital output. |
11/30/2012 5:29 PM | |
Posts: 5 Rating: (0) |
this is the program I'm using, I do not know if it is misconfigured
AttachmentPID.zip (286 Downloads) |
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