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Search: Posts Made By: Doug-P
Forum: LIVE PLC Questions And Answers September 13th, 2018, 11:35 PM
Replies: 12
Views: 422
Posted By Doug-P
There are graphic representations of this...

There are graphic representations of this instruction which illustrate what is being discussed in chapter 7 of the instruction set reference...
Forum: LIVE PLC Questions And Answers May 1st, 2018, 02:34 PM
Replies: 25
Views: 1,855
Posted By Doug-P
Aren't channel config, etc. available via the...

Aren't channel config, etc. available via the front panel keypad and display?

OP - it'd be nice too to know whether they have a mode switch on hand.
Forum: LIVE PLC Questions And Answers March 1st, 2018, 08:31 AM
Replies: 26
Views: 2,405
Posted By Doug-P
+1

+1
Forum: LIVE PLC Questions And Answers February 19th, 2018, 07:56 PM
Replies: 14
Views: 777
Posted By Doug-P
Clean/replace any cabinet filters.

Clean/replace any cabinet filters.
Forum: LIVE PLC Questions And Answers February 7th, 2018, 12:04 AM
Replies: 40
Views: 3,855
Posted By Doug-P
From the link: The two crawler-transporters were...

From the link: The two crawler-transporters were designed and built by Marion Power Shovel Company using components designed and built by Rockwell International. Soo, Arduino/Rpi? Doubtful. ;)
...
Forum: LIVE PLC Questions And Answers February 6th, 2018, 06:49 PM
Replies: 40
Views: 3,855
Posted By Doug-P
IIRC, a PLC-3 ran the transporter...

IIRC, a PLC-3 ran the transporter (https://en.wikipedia.org/wiki/Crawler-transporter) which carried the shuttles, and others, from the hangar to the launch pad. Probably a CLX these days.
Forum: LIVE PLC Questions And Answers January 26th, 2018, 05:53 PM
Replies: 27
Views: 2,359
Posted By Doug-P
Don't look now, but:...

Don't look now, but: https://astronomynow.com/2015/07/17/diminishing-solar-activity-may-bring-new-ice-age-by-2030/
Forum: LIVE PLC Questions And Answers January 26th, 2018, 01:59 PM
Replies: 7
Views: 833
Posted By Doug-P
Maybe nothing but, in LAD4, rung 12, 16, 20,...

Maybe nothing but, in LAD4, rung 12, 16, 20, etc., the rung comment doesn't match what is happening in the SUB instruction. Might L17:nn end up with a negative value?
Forum: LIVE PLC Questions And Answers January 9th, 2018, 12:10 AM
Replies: 29
Views: 1,734
Posted By Doug-P
Based on what you've presented, it's not...

Based on what you've presented, it's not important where any particular 1 is, what's important is knowing whether there are 13 ones in a lane. Yes?

Filling the least significant bits, thirteen...
Forum: LIVE PLC Questions And Answers December 26th, 2017, 10:27 AM
Replies: 19
Views: 963
Posted By Doug-P
If I've correctly unserstood your intent, your...

If I've correctly unserstood your intent, your rung to run the timers is, shall we say, unusual. The operator would have to press both 'start' and 'stop' at the same time, continuously to get cr_1...
Forum: LIVE PLC Questions And Answers December 5th, 2017, 08:09 PM
Replies: 29
Views: 1,734
Posted By Doug-P
Yes. But if only bits are involved it would take...

Yes. But if only bits are involved it would take but a few instructions to put together a loop to search for a bit value of zero and return its position.
Forum: LIVE PLC Questions And Answers December 5th, 2017, 10:19 AM
Replies: 29
Views: 1,734
Posted By Doug-P
A question from left field. If you're only...

A question from left field. If you're only dealing with '1' and '0' would a bit array not work as well?
Forum: LIVE PLC Questions And Answers November 9th, 2017, 02:26 PM
Replies: 16
Views: 1,480
Posted By Doug-P
In one of the other vids he mentions that he's...

In one of the other vids he mentions that he's looking to patent or license the design.

We had a laser dimension/weighing station built from 80/20. Worked well and strong but, it didn't get any...
Forum: LIVE PLC Questions And Answers November 9th, 2017, 02:24 PM
Replies: 16
Views: 1,480
Posted By Doug-P
Thanks for adding the link.

Thanks for adding the link.
Forum: LIVE PLC Questions And Answers November 9th, 2017, 12:36 PM
Replies: 16
Views: 1,480
Posted By Doug-P
Bowling anyone?

Man describes his homebuilt half-scale pinsetter (https://www.youtube.com/watch?v=rfn7q36J-TA).

Quite the single handed project. In one of the other videos on this a young poster asked if it...
Forum: LIVE PLC Questions And Answers November 8th, 2017, 12:45 PM
Replies: 13
Views: 1,286
Posted By Doug-P
Ah.

Ah.
Forum: LIVE PLC Questions And Answers November 8th, 2017, 08:56 AM
Replies: 13
Views: 1,286
Posted By Doug-P
Luckily?

Luckily?
Forum: LIVE PLC Questions And Answers November 7th, 2017, 06:14 PM
Replies: 13
Views: 1,286
Posted By Doug-P
Built a small conveyor release controller out of...

Built a small conveyor release controller out of one. Numbers only programming = ugh!
Forum: LIVE PLC Questions And Answers November 6th, 2017, 02:35 PM
Replies: 11
Views: 1,368
Posted By Doug-P
Corrected URL : PLC boot camp...

Corrected URL : PLC boot camp (https://www.youtube.com/watch?v=T3tnXu-Eywc&list=PLGzS56y9k4eYr1uS3jPPxGunBTtPcS3Ez)

:shoot:

This is what comes of having multiple windows open and being on...
Forum: LIVE PLC Questions And Answers November 6th, 2017, 12:02 PM
Replies: 11
Views: 1,368
Posted By Doug-P
Zero dollars PLC intro: Ron Beaufort's & Archie's...

Zero dollars PLC intro: Ron Beaufort's & Archie's tutorials (http://en.cppreference.com/w/cpp/language/operator_precedence).
Forum: LIVE PLC Questions And Answers October 8th, 2017, 04:21 PM
Replies: 16
Views: 1,198
Posted By Doug-P
It works on the emulator. NEQ N11:18 255...

It works on the emulator.

NEQ N11:18 255 BST MOV N11:18 N10:18 NXB COP #N[N19:2]:[N19:3] #N11:20 10 BND
Forum: LIVE PLC Questions And Answers October 8th, 2017, 01:04 PM
Replies: 16
Views: 1,198
Posted By Doug-P
Yes, I came up with the same results. (pencil...

Yes, I came up with the same results. (pencil and paper method)
Forum: LIVE PLC Questions And Answers October 8th, 2017, 12:53 PM
Replies: 16
Views: 1,198
Posted By Doug-P
According to the SLC-500 Instruction Set...

According to the SLC-500 Instruction Set Reference (http://literature.rockwellautomation.com/idc/groups/literature/documents/rm/1747-rm001_-en-p.pdf), appendix D, indexed indirect is available.
...
Forum: LIVE PLC Questions And Answers October 7th, 2017, 11:42 PM
Replies: 16
Views: 1,198
Posted By Doug-P
No. The data those registers are pointing to ...

No. The data those registers are pointing to will be loaded. This is an address of data : N11:18. In the rung you posted the data is '255'.

In the expression #N[N19:2]:[N19:3] the numbers in...
Forum: LIVE PLC Questions And Answers October 3rd, 2017, 12:48 PM
Replies: 14
Views: 1,753
Posted By Doug-P
Yes, I misspoke there. I meant just the...

Yes, I misspoke there. I meant just the expression.
Showing results 1 to 25 of 500

 
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