Hi Everyone.
I have been reading through the forums, and I have learned a lot! I do have a specific question that I couldn't find.
I have a Micrologix 1200, and I am using a I/O card from Sprectrumcontrols.com. This is a 1762sc-IF4/OF4. Basically this gives me four analog outputs, and four analog inputs, two of which can be configured for thermoucouple.
I have an oven with a J-type theromocouple, and an actuator for heat that runs on 4-20mA.
I am using RSlogix 500, and I have a PID box, but I cannot figure out how to set it up properly for my application. My input is I:6/6 this is the thermoucouple, my output is O:6/0 this is the 4-20mA. I tried to enter I:6/6 as the Process variable right in the PID box. I also made a PID file PD:9/0.
The PV value does not change as my temperature changes, and I don't know how to point the output of the PID to my analog output.
I have taken the I:6/6 input and done some math to make it read degrees F, for my HMI.
If someone could help me with using the analog input and output with the PID instruction, I would be very grateful!
Thanks.
I have been reading through the forums, and I have learned a lot! I do have a specific question that I couldn't find.
I have a Micrologix 1200, and I am using a I/O card from Sprectrumcontrols.com. This is a 1762sc-IF4/OF4. Basically this gives me four analog outputs, and four analog inputs, two of which can be configured for thermoucouple.
I have an oven with a J-type theromocouple, and an actuator for heat that runs on 4-20mA.
I am using RSlogix 500, and I have a PID box, but I cannot figure out how to set it up properly for my application. My input is I:6/6 this is the thermoucouple, my output is O:6/0 this is the 4-20mA. I tried to enter I:6/6 as the Process variable right in the PID box. I also made a PID file PD:9/0.
The PV value does not change as my temperature changes, and I don't know how to point the output of the PID to my analog output.
I have taken the I:6/6 input and done some math to make it read degrees F, for my HMI.
If someone could help me with using the analog input and output with the PID instruction, I would be very grateful!
Thanks.
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