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Search: Posts Made By: Peter Nachtwey
Forum: LIVE PLC Questions And Answers Yesterday, 11:32 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
One more thing. I believe the world is made up...

One more thing.
I believe the world is made up of makers and takers. Most if not all on this forum are makers. The new order will penalize makers to pay for the takers. For too long I have...
Forum: LIVE PLC Questions And Answers January 23rd, 2021, 07:32 PM
Replies: 15
Views: 290
Posted By Peter Nachtwey
Your method will work but it would respond to...

Your method will work but it would respond to rapid changes because the integrator in the PIDs will need to ramp up or down and that takes time. If everything is pretty much steady state then go for...
Forum: LIVE PLC Questions And Answers January 20th, 2021, 07:42 PM
Replies: 9
Views: 272
Posted By Peter Nachtwey
Most mills I have been to use IPs in the...

Most mills I have been to use IPs in the 192.168.xxx.yyy range. xxx is the machine center and yyy is the particular device in the machine center.
So yyy may be 1 for the switch, 2 for the HMI, ...
Forum: LIVE PLC Questions And Answers January 20th, 2021, 09:33 AM
Replies: 15
Views: 583
Posted By Peter Nachtwey
I don't forum is asking the right question. ...

I don't forum is asking the right question.
What EXACTLY is changing the line speed?
Is it the measured line speed or the set point line speed?
This makes a huge difference.
Forum: LIVE PLC Questions And Answers January 18th, 2021, 09:15 PM
Replies: 32
Views: 1,448
Posted By Peter Nachtwey
Another free option ...

Another free option

https://sourceforge.net/projects/dia-installer/
Forum: LIVE PLC Questions And Answers January 18th, 2021, 03:42 PM
Replies: 25
Views: 645
Posted By Peter Nachtwey
Then you should have showed us a dozen posts ago....

Then you should have showed us a dozen posts ago.
I have provided many examples of PID code on this forum but they get lost when they are no longer on the front page.
No one searches.


I don't...
Forum: LIVE PLC Questions And Answers January 18th, 2021, 12:44 AM
Replies: 25
Views: 645
Posted By Peter Nachtwey
Writing code to implement a PID is easy.

Writing code to implement a PID is easy.
Forum: LIVE PLC Questions And Answers January 17th, 2021, 08:03 PM
Replies: 25
Views: 645
Posted By Peter Nachtwey
What efforts did Rockwell make? There should be...

What efforts did Rockwell make? There should be no problem simulating a PID and the system.



I would write the emulator on the PC but put it in the firmware in the PLC. This is what we have...
Forum: LIVE PLC Questions And Answers January 17th, 2021, 07:49 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
@alive15, after I was laid off in 1985 went to...

@alive15, after I was laid off in 1985 went to work for Delta for about 25% less than I was getting at my previous company.
I just saw an opportunity in Delta.


About being adaptable. I didn't...
Forum: LIVE PLC Questions And Answers January 17th, 2021, 05:20 PM
Replies: 25
Views: 645
Posted By Peter Nachtwey
You guys keep forgetting there is the Hotrod.zip...

You guys keep forgetting there is the Hotrod.zip file in the downloads/misc section where I wrote a simulator to simulate Ron Beauforts hotrod students trainers. The ladder is for the SLC500 and...
Forum: LIVE PLC Questions And Answers January 15th, 2021, 08:13 PM
Replies: 10
Views: 457
Posted By Peter Nachtwey
This isn't so. I can simulate servo hydraulic...

This isn't so. I can simulate servo hydraulic systems. I can calculate how the system will respond but what is more important is getting a specification and then being able design a cost effective...
Forum: LIVE PLC Questions And Answers January 15th, 2021, 01:45 PM
Replies: 10
Views: 457
Posted By Peter Nachtwey
This is a huge problem in servo hydraulic...

This is a huge problem in servo hydraulic control. Servo hydraulic control requires knowledge of hydraulics, mechanics and control. Too many times I have seen machines with abysmal designs that...
Forum: LIVE PLC Questions And Answers January 15th, 2021, 01:16 AM
Replies: 10
Views: 404
Posted By Peter Nachtwey
The first answer should not be a filter. The...

The first answer should not be a filter.
The first question I have is are you filtering process noise, transducer noise or wiring noise.What Steven mentions is process noise.

When the system...
Forum: LIVE PLC Questions And Answers January 12th, 2021, 09:30 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
I have thougt about this some more

Be adaptable. Life can be strange. I never thought in my wildest dreams I would end up where I am today.


There will be opportunities that will come your way and you must be able to recognize...
Forum: LIVE PLC Questions And Answers January 11th, 2021, 09:24 AM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
Are there any places in the UK to camp? Here...

Are there any places in the UK to camp?
Here there are national forests. There are state camp grounds but they pack the camp sites too close together. I would rather be in the sticks. I don't...
Forum: LIVE PLC Questions And Answers January 10th, 2021, 06:28 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
@ganitenator. I will still be around when I have...

@ganitenator. I will still be around when I have internet.
I never did figure out what a ganutenator is.
Also, haven't you moved a few times over the years?
You have been around a while too.

...
Forum: LIVE PLC Questions And Answers January 7th, 2021, 01:50 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
I looked at a Nash 17K. It has a regular queen...

I looked at a Nash 17K. It has a regular queen size bed, 80", whereas most trailers have only full size beds, 75". I am tall and my feed would hang over the end of the bed. Also, the Arctic Fox...
Forum: LIVE PLC Questions And Answers January 7th, 2021, 01:38 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
I remember when Pandiani presented a control...

I remember when Pandiani presented a control problem here. I could tell the problem was contrived. A few years back we used Skype to talk about controls. We would talk for about 1 hour.
I could...
Forum: LIVE PLC Questions And Answers January 7th, 2021, 01:26 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
https://deltamotion.com/other/designguide/register...

https://deltamotion.com/other/designguide/register.php


Actually, I am supposed to be working on a 4th version of the Design Guide. The next version will be augmented by some of the articles I...
Forum: LIVE PLC Questions And Answers January 5th, 2021, 08:50 PM
Replies: 9
Views: 744
Posted By Peter Nachtwey
For me it would have been a no-brainer a few...

For me it would have been a no-brainer a few years ago. Rockwell all the way because I hated the S7-300, but the new S7-1200 and S7-1500 are decent. You guys haven't heard rant and rave about S7s...
Forum: LIVE PLC Questions And Answers January 5th, 2021, 10:29 AM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
Fill a niche. Be special. Accept challenges....

Fill a niche. Be special.
Accept challenges.
Don't stop learning.
I have often mentioned "forever knowledge". "forever knowledge" is physics and math that will not change. Too many pay a lot...
Forum: LIVE PLC Questions And Answers January 3rd, 2021, 10:58 AM
Replies: 7
Views: 571
Posted By Peter Nachtwey
I was wondering about that. The upstream scans...

I was wondering about that. The upstream scans had to be much faster since the pictures would go out of view faster.


Am I to assume that each picture gets scanned only once?
If the camera is...
Forum: LIVE PLC Questions And Answers January 2nd, 2021, 06:22 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
Thanks, I won't be gone. I just won't be...

Thanks, I won't be gone. I just won't be reading or posting as often when in the sticks where there is no internet.
Forum: LIVE PLC Questions And Answers January 2nd, 2021, 01:36 PM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
I have a water rower. ...

I have a water rower.
https://www.waterrower.com/
I think I have the model called the natural. I bought mine long ago but some of the parts like the plastic rails the seat rolls on are starting to...
Forum: LIVE PLC Questions And Answers January 2nd, 2021, 10:50 AM
Replies: 74
Views: 7,244
Posted By Peter Nachtwey
@PLCNovice61, not Tasmania. The flights are too...

@PLCNovice61, not Tasmania. The flights are too long. Also, it is not as easy to just move to AU or NZ when you are old and not working. You have a point system.
The US should get smart and have...
Showing results 1 to 25 of 500

 
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