Internet PLC Forum

General => Technical support => Topic started by: mhampson on March 21, 2004, 07:36:20 PM

Title: Multiple PID Loops?
Post by: mhampson on March 21, 2004, 07:36:20 PM

Can I implement more than one PID loop in the T100MD+ PLC? I need two independent PID loops, each  based on separate SP and PV inputs and CV outputs. Can I do a PIDdef for each channel, or can I just do one? Luckily, one PID has no D gain, so I can build my own PID for that loop without too much trouble if necessary.

Thanks,
Michael Hampson

Title: Re:Multiple PID Loops?
Post by: support on March 22, 2004, 02:33:18 PM

The PLC support up to 16 PID loops. These are single input, single output only. The actual number of PID loops is limited by the number of physical analog or PWM outputs on the PLC.

Title: Re:Multiple PID Loops?
Post by: mhampson on March 22, 2004, 02:35:36 PM

I suspected that this was the case, but I couldn't find documentation that said that specifically. This is a big help, and a big feature for a small PLC like this too!

The programming, etc. has been a pleasure thus far for this machine. Great product.

Thanks for your response.

Michael