Created Date: May 23,2017

Created by: rick62

where can one find a good working example of a DL06-05 either one , a workable pid control. I work with plastic extrusion machines, and would like to change over from individual temperature controllers to plc controlled from an hmi. have been using ad for a few years, just would like to get better at writing pid logic for ad. have worked with the manual, but still have issues from controlling the heat cycle to cooling cycle, always unstable.

Created Date: May 24,2017

Created by: BobO

If we are recommending other controllers over the DL06, then please consider BRX. Do-more Designer (BRX programming environment) has a DL migration tool that converts what it can from DL to Do-more, and gives very good guidance on how to port instructions that it can't. The Do-more engine does support auto-tuning from code. Do-more Designer also includes a full PLC simulator, which includes a process simulator for testing PID.

Created Date: May 24,2017

Created by: ControlsGuy

@bsinkivoch: "I would recommend using a Productivity 2000 with the PID built in. The P2k also has auto tune. "

Not sure what you 're saying here. DL0x has built-in PID and AutoTune. Who uses Autotune anyway? Be a man, use your hands. ;)

However....I agree with BobO. Do-More in general, including BRX, is significantly better and I'd use that.

Created Date: May 24,2017

Created by: ControlsGuy

@bsinkovich: "I would recommend using a Productivity 2000 with the PID built in. The P2k also has auto tune. "

Not sure what you 're saying here. DL0x has built-in PID and AutoTune. Who uses Autotune anyway? Be a man, use your hands. ;)

However....I agree with BobO. Do-More in general, including BRX, is significantly better and I'd use that.

Created Date: May 24,2017

Created by: bsinkovich

Who uses Autotune anyway? Be a man, use your hands. ;)

Me sometimes, but the numbskulls the shop floor, all the time. If using "my hands " for the PID loop, is this not the same as me turning the 10 turn POT for adjustment? I 've been there done that.;)

BobO, without analog in I am not sure I could recommend the BXR for temperature control yet, sorry. There are ways around getting the analog into the PLC but why go to all the trouble? Also I forgot the 06 had PID loops. I misread what the original poster was asking. Sounds like he wants working PID code running in a 06? What is needed for the PID to run in the 06, three-4 line of code:confused:? I never used one.

Created Date: May 24,2017

Created by: Mike Nash

OK seems BRX does have analog? Im so confused.

Some do. It's not actually figured into the count in the model, so a 36 point BRX has 4 analog inputs and 2 analog outputs in addition to the 36 digital I/O. They are configurable for single or bipolar and various voltage and current ranges, including +/- 20mA. Very versatile, but the built-in points are all we have until the analog expansion modules are released. The 10 and 18 point models have only 1 analog input and 1 analog output. There are 2 models with no I/O. The analog that is built in may not be suitable for RTDs or thermocouples since the minimum span is 0-5V.