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Search: Posts Made By: daba
Forum: LIVE PLC Questions And Answers May 2nd, 2021, 05:20 PM
Replies: 10
Views: 814
Posted By daba
One thing to consider is that the integrated LAN...

One thing to consider is that the integrated LAN port of a CompactLogix won't rely on the meagre 5MB/s bandwidth of "ControlBus" to give it's birth name, but everyone (Including Rockwell Software)...
Forum: Practice Posting Here May 2nd, 2021, 04:49 PM
Replies: 4
Views: 2,960
Posted By daba
You may need to post this question in the main...

You may need to post this question in the main forum area " Live PLC Questions...." - this is the "Practice Posting" area, and not many people live here.

And you have put your question as a reply...
Forum: LIVE PLC Questions And Answers April 24th, 2021, 07:20 PM
Replies: 16
Views: 1,403
Posted By daba
Apparently "Storage" is some container filled...

Apparently "Storage" is some container filled with a blue liquid, we do not know. But it does not get referenced in the question, so presumably we can ignore it.

LS4 looks like it has been...
Forum: LIVE PLC Questions And Answers April 24th, 2021, 06:56 PM
Replies: 24
Views: 1,672
Posted By daba
That still gives the "opportunity" for RA to...

That still gives the "opportunity" for RA to suggest you are not running their software on a native OS that they have tested it on.

I very much doubt you will get a statement from them that it...
Forum: LIVE PLC Questions And Answers April 24th, 2021, 05:04 PM
Replies: 24
Views: 1,672
Posted By daba
Are you really suggesting a MacBook pro running...

Are you really suggesting a MacBook pro running applications designed and tested on Windows is a good thing ?


The slightest hint to RA tech support that you are running their software on iOS...
Forum: LIVE PLC Questions And Answers April 23rd, 2021, 07:45 PM
Replies: 16
Views: 1,403
Posted By daba
Just got to question why the empty hangers have...

Just got to question why the empty hangers have to go through the oven again on the return journey ???

Why can't educators come up with real-life situations, that have a practical purpose, that...
Forum: LIVE PLC Questions And Answers April 23rd, 2021, 07:14 PM
Replies: 6
Views: 690
Posted By daba
Shocked by your post, I looked it up at my local...

Shocked by your post, I looked it up at my local distributor, 146 each !!

Now don't get me wrong, I don't mind someone making an acceptable profit on an item, but that is HORRENDOUS! and just...
Forum: LIVE PLC Questions And Answers April 16th, 2021, 04:00 PM
Replies: 10
Views: 614
Posted By daba
Some good points raised there. Firstly I...

Some good points raised there.

Firstly I would never let an external device, whether it be an HMI, SCADA, or even another PLC manipulate data that could crash mine, it would all go through...
Forum: LIVE PLC Questions And Answers April 16th, 2021, 03:40 PM
Replies: 6
Views: 605
Posted By daba
"Forcing" as you call it, is NOT possible to do...

"Forcing" as you call it, is NOT possible to do from the HMI.

The HMI cannot write to the forces data area, neither can the HMI "Enable" forces.

I/O Forces are reserved as commissioning/testing...
Forum: LIVE PLC Questions And Answers April 16th, 2021, 02:56 PM
Replies: 18
Views: 1,176
Posted By daba
No sweat OkiePC, we all have dumb moments, only...

No sweat OkiePC, we all have dumb moments, only mine are getting longer and more frequent, lol
Forum: LIVE PLC Questions And Answers April 16th, 2021, 02:51 PM
Replies: 7
Views: 465
Posted By daba
I've seen control panels that looked like that...

I've seen control panels that looked like that the day after commissioning !!!

Especially the MCC in Athens where they had removed ALL the trunking lids and all the cables had fell out ! That same...
Forum: LIVE PLC Questions And Answers April 16th, 2021, 02:41 PM
Replies: 7
Views: 465
Posted By daba
Input mapping in Loghix5000 is only necessary...

Input mapping in Loghix5000 is only necessary when you want to reference an input multiple times within the scan.

So long as a physical input is only read once, then it is actually synchronous to...
Forum: LIVE PLC Questions And Answers April 16th, 2021, 09:24 AM
Replies: 6
Views: 622
Posted By daba
The power panel one .... This one - ...

The power panel one ....

This one - https://www.youtube.com/watch?v=RXJKdh1KZ0w
Forum: LIVE PLC Questions And Answers April 16th, 2021, 09:10 AM
Replies: 6
Views: 622
Posted By daba
I just love that video ! :)

I just love that video ! :)
Forum: LIVE PLC Questions And Answers April 15th, 2021, 10:23 PM
Replies: 10
Views: 614
Posted By daba
Code works with data, period. If either are...

Code works with data, period.

If either are untrustworthy there is no hope ....
Forum: LIVE PLC Questions And Answers April 15th, 2021, 06:43 PM
Replies: 6
Views: 622
Posted By daba
Quite an old film, I would wager that a more...

Quite an old film, I would wager that a more modern plant perhaps 5 to 10 times faster ?
Forum: LIVE PLC Questions And Answers April 15th, 2021, 06:29 PM
Replies: 10
Views: 614
Posted By daba
Inadvertent values don't just "happen", they are...

Inadvertent values don't just "happen", they are created by programmers ....
Forum: LIVE PLC Questions And Answers April 15th, 2021, 06:24 PM
Replies: 10
Views: 614
Posted By daba
Yes, read my previous post again - I edited it. ...

Yes, read my previous post again - I edited it.

But in answer to this post, don't let it get negative, then you won't have to write fault routines to handle any mess caused upstream ....
Forum: LIVE PLC Questions And Answers April 15th, 2021, 06:04 PM
Replies: 10
Views: 614
Posted By daba
You don't need to. A math overflow is...

You don't need to.

A math overflow is never considered to be a major fault in Logix5000, neither is it in PLC2, PLC3, PLC5 PLC5/250 etc.

It is only the SLC & MicroLogix families that have...
Forum: LIVE PLC Questions And Answers April 15th, 2021, 04:32 AM
Replies: 18
Views: 1,176
Posted By daba
YOU CANNOT USE COP ! COP does NO conversion...

YOU CANNOT USE COP !

COP does NO conversion !

The source and destination data-types must be the same.

If you use COP to copy into a DINT (4 bytes), then 4 bytes will be copied from the...
Forum: LIVE PLC Questions And Answers April 14th, 2021, 08:40 PM
Replies: 23
Views: 1,125
Posted By daba
Nope sorry, a "reference" is something you can...

Nope sorry, a "reference" is something you can "look-up". Most often fixed but can be changed.

You cannot call the feedback of a process variable a reference, unless (cough) it is used as a...
Forum: LIVE PLC Questions And Answers April 14th, 2021, 08:32 PM
Replies: 23
Views: 1,125
Posted By daba
Nose is looking good drbitboy

Nose is looking good drbitboy
Forum: LIVE PLC Questions And Answers April 14th, 2021, 07:15 PM
Replies: 23
Views: 1,125
Posted By daba
Question What's wrong with SP and PV, like we use in other...

What's wrong with SP and PV, like we use in other control loops.

It shouldn't matter whether it's temperature, pressure, flow, level, position, altitude, azimuth, or anything else, it all boils...
Forum: LIVE PLC Questions And Answers April 14th, 2021, 01:04 PM
Replies: 18
Views: 1,176
Posted By daba
Helliana and OkiePC have both suggested COPy...

Helliana and OkiePC have both suggested COPy .....

That is incorrect.

To perform data conversion from an INT to a DINT, you must use MOV.
Forum: LIVE PLC Questions And Answers April 13th, 2021, 08:28 PM
Replies: 44
Views: 1,614
Posted By daba
OP obviously thinks he has solved his problem,...

OP obviously thinks he has solved his problem, not the problem.

He has a tank going HiHi, shutting down processes because of an operator entered set-point ????

How does that equate ?

And...
Showing results 1 to 25 of 500

 
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