Direct Soft and PID controlling

Hi Guys, I want to do PID controlling for a Hydraulic Cylinder. So basicly I have a 10v analog input from the temposonic for position and a 10v Output Signal for the Proportional valve.

In Allen Bradley I can use the PID-instruction which would be perfect but this machine has a Direct Soft 205 with DL260 CPU and the programming works a little different.

I went through it and found no PID-instruction. How do I get started on this?

If some one can just help me get started, I would appreciate it.

I think It would be something like to LOAD the Analog IP, SUB it form a REF and do some more MATH and then Give it to the Analog OUT. That is unless there is a much simpler way to do it.

Many Thanks

The Direct Logic line of PLCs all have roughly the same PID functions. Do as follows.

1. Click PLC --> Setup --> PID
2. It will ask you for a table starting address. Give it a V-memory location you are not using else where. If you use say V-4000 as your starting point, it will use V-4000 - V4037 for a single PID loop.
3. See http://web6.automationdirect.com/static/manuals/d2user/d2user.html

Look at chapter 8, it has a very in depth and good guide to using PID.

If you need more help, ping back after reading the manual.

Thanks CroCop, will do

AD has an online site that showes how to do it.
http://support.automationdirect.com/tutorials/index.html