How to enter parameters of PID instruction in RSlogix 500

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leoxdragon
Posts: 5
Joined: Thu Nov 26, 2009 3:08 am

How to enter parameters of PID instruction in RSlogix 500

Post by leoxdragon »

Hi everybody
I am trying to setup a PID system for heat control. I intend to use SLC 5/03 (1747 L532E) for PID calculation. I have read the SLC instruction help. It's stated that (for SLC 5/03) Kp ranges from 0 to 3276.7, Ti ranges from 0 to 3276.7 while Td ranges from 0 to 327.67
So my question is how to convert my real values of Kp, Ti and Td to suitable values to enter the parameter of the instruction?

pls help me with a particular set of following parameters:

Kp =0.0562
Ti = 66.67 (sec)
Td = 0
Image
thanks in advance
nautical
Posts: 14
Joined: Fri May 11, 2007 2:41 pm
Location: Hong Kong

Re: How to enter parameters of PID instruction in RSlogix 50

Post by nautical »

Kc: Kp =0.0562
Ti: Ti = 66.67 (sec)
Td: Td = 0

Loop Update=PID cycle time
Control Mode: Positive or Negative gain

Setpoint SP, is variable and can be input via the PID control word container


Hope can help you!!! (welc)