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Search: Posts Made By: Aardwizz
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 12:44 PM
Replies: 10
Views: 225
Posted By Aardwizz
If you're more familiar with PLC5 / SLC...

If you're more familiar with PLC5 / SLC addressing, you might be thinking of a BOOL array as something equivalent to B3/x, where x is the bit number in B3. An indirect address of B3/[N7:0] makes for...
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 09:48 AM
Replies: 4
Views: 184
Posted By Aardwizz
OK. I see what happened. Once upon a time,...

OK. I see what happened.

Once upon a time, in the PLC5, there was a BSL(B18,128) that worked just fine.

When converted into ControlLogix, the BSL instruction only works on DINT arrays, not INT...
Forum: LIVE PLC Questions And Answers February 21st, 2018, 08:45 AM
Replies: 4
Views: 184
Posted By Aardwizz
It's not the BTD, but the BSL that's "stopped...

It's not the BTD, but the BSL that's "stopped working".

The BSL length is 128. In a PLC5 N register, that's 8 words. But B18 is formated as a DINT array, so 128 bits is only 4 words.

I don't...
Forum: LIVE PLC Questions And Answers February 21st, 2018, 02:31 AM
Replies: 6
Views: 2,370
Posted By Aardwizz
Welcome to the forum! It is usually better to...

Welcome to the forum! It is usually better to start a new thread, rather than asking a new question on an old. Otherwise, you'll elicit answers to questions that are not your own, wasting...
Forum: LIVE PLC Questions And Answers February 18th, 2018, 09:27 AM
Replies: 2
Views: 143
Posted By Aardwizz
You can get a little bit of information with a...

You can get a little bit of information with a GSV, if you select Class Name to "Redundancy" (the controller must have Redundancy enabled in the Controller properties for this to work).

For more...
Forum: LIVE PLC Questions And Answers February 16th, 2018, 06:25 AM
Replies: 21
Views: 1,125
Posted By Aardwizz
Please let's not devolve this into another AB pricing bash thread.

How much do you value your time?

Some people figure, "The pay's the same, no matter what I'm doing", and so the cost they worry about is the cost of hardware.

I've seen meetings discussing...
Forum: LIVE PLC Questions And Answers February 16th, 2018, 12:21 AM
Replies: 7
Views: 279
Posted By Aardwizz
Many programmers / engineers suffer from a mild...

Many programmers / engineers suffer from a mild OCD. To them, it just feels wrong if the minor rev doesn't match exactly, even if there is no practical advantage for doing so.

Be kind to us them;...
Forum: LIVE PLC Questions And Answers February 15th, 2018, 10:29 AM
Replies: 30
Views: 783
Posted By Aardwizz
If you're in Germantown, PA, contract Rumsey...

If you're in Germantown, PA, contract Rumsey Electric, the local Rockwell distributor. They either may be able to help, or put you in touch with a local system's integrator (there are several in the...
Forum: LIVE PLC Questions And Answers February 15th, 2018, 10:09 AM
Replies: 11
Views: 208
Posted By Aardwizz
My mistake -- as Ravioli pointed out, the ASCII...

My mistake -- as Ravioli pointed out, the ASCII file type is .PC5, not .X5 (this is what I get for not having the software to get the right answer, and doing a too-fast Google to get what I thought...
Forum: LIVE PLC Questions And Answers February 15th, 2018, 03:54 AM
Replies: 8
Views: 170
Posted By Aardwizz
I'd be curious to see your code. I collect code...

I'd be curious to see your code. I collect code fragments the way that others collect stamps. It's a hobby (and a sickness).

I also don't see what's so "hard way" about my method. Once the code...
Forum: LIVE PLC Questions And Answers February 15th, 2018, 03:42 AM
Replies: 8
Views: 170
Posted By Aardwizz
It's a fine line -- between showing off how smart...

It's a fine line -- between showing off how smart we are, and not cheating someone out of the learning process that repeatedly beating one's head against a wall brings. This place is powered by...
Forum: LIVE PLC Questions And Answers February 15th, 2018, 03:04 AM
Replies: 8
Views: 170
Posted By Aardwizz
Map each of the alarm conditions to a unique bit...

Map each of the alarm conditions to a unique bit in a DINT ("ACTIVE_ALARMS"). Follow the convention of Alarm State = 1; OK = 0.

Your Lamp can be enabled whenever ACTIVE_ALARMS is non-zero.
...
Forum: LIVE PLC Questions And Answers February 14th, 2018, 05:55 PM
Replies: 11
Views: 208
Posted By Aardwizz
Can you do a download? If you save the...

Can you do a download?

If you save the program as an an ASCII file (.X5), towards the end are the various data tables with their values. It takes some effort, but it's possible to get Excel to...
Forum: LIVE PLC Questions And Answers February 14th, 2018, 03:59 PM
Replies: 9
Views: 205
Posted By Aardwizz
You may be overthinking it.

If I'm understanding you, rather than having WW read from 30-odd ML1100's over radio, you're concentrating all the data into a CompactLogix, and having that do the Reads & Writes.

If so, you might...
Forum: LIVE PLC Questions And Answers February 13th, 2018, 09:19 PM
Replies: 9
Views: 205
Posted By Aardwizz
Are you saying that you are trying to have...

Are you saying that you are trying to have Wonderware read from the Micrologix and write to the CompactLogix? I've seen SCADA's used as cheap protocol converters or network bridges, but why not have...
Forum: LIVE PLC Questions And Answers February 11th, 2018, 10:15 PM
Replies: 13
Views: 369
Posted By Aardwizz
Not every question answered; work with what you got

You won't see the yellow triangle offline, only when you're trying to use it online will you know that you're not talking to it properly.

Try this:
Go online, open the PF525 faceplate, and go to...
Forum: LIVE PLC Questions And Answers February 11th, 2018, 12:49 PM
Replies: 13
Views: 369
Posted By Aardwizz
The game of 20 Questions begins.

There are lots of different ways that things can be going wrong, that it's going to be tough to help you.

First off, the "yellow triangle" in the PLC's I/O tree means that the PLC isn't...
Forum: LIVE PLC Questions And Answers February 11th, 2018, 12:00 AM
Replies: 13
Views: 580
Posted By Aardwizz
In the controller tags, open up the Input file...

In the controller tags, open up the Input file for the module / channel. There is diagnostic information there that may tell you what's going on.
Forum: LIVE PLC Questions And Answers February 10th, 2018, 08:57 PM
Replies: 15
Views: 493
Posted By Aardwizz
File instructions (FAL, FSC, AVE, etc.) set a .DN...

File instructions (FAL, FSC, AVE, etc.) set a .DN bit, and don't re-execute until the bit is reset, typically by a true-to-false transition. The timer .DN bit does that, so yes, as written, the RES...
Forum: LIVE PLC Questions And Answers February 10th, 2018, 12:28 PM
Replies: 13
Views: 580
Posted By Aardwizz
According to the Help file, the scaling for 4-20...

According to the Help file, the scaling for 4-20 mA "Raw/Proportional" is -29,822 to 29,085.

Because your SCP block never sets a value lower than 4000, you're always sending out at least...
Forum: LIVE PLC Questions And Answers February 10th, 2018, 06:54 AM
Replies: 15
Views: 493
Posted By Aardwizz
It all depends on what your're trying to do. ...

It all depends on what your're trying to do.

A FIFO is great when you have a variable number of data points, and/or the trigger to unload data is different from the trigger to load data.

But it...
Forum: LIVE PLC Questions And Answers February 9th, 2018, 06:29 PM
Replies: 31
Views: 803
Posted By Aardwizz
We have different ideas as to what is easy / good...

We have different ideas as to what is easy / good and what is overkill / bad. Which is normal and healthy, except for perhaps in politics.

I don't consider shifting 30 registers once a day to be...
Forum: LIVE PLC Questions And Answers February 9th, 2018, 11:38 AM
Replies: 37
Views: 1,589
Posted By Aardwizz
There's something about Elon Musk that makes me...

There's something about Elon Musk that makes me think that his ultimate goal involves a volcano lair.
Forum: LIVE PLC Questions And Answers February 9th, 2018, 11:36 AM
Replies: 31
Views: 803
Posted By Aardwizz
The one thing that I don't like about your...

The one thing that I don't like about your solution, Daba, is that some months you populate WaitingTimes[31] and some months you don't. Feb is even worse. So when you're looking at "the last 30...
Forum: LIVE PLC Questions And Answers February 8th, 2018, 04:23 PM
Replies: 37
Views: 1,589
Posted By Aardwizz
What I want to know is: is there now a China...

What I want to know is: is there now a China teapot in an elliptical orbit between the Earth and Mars?
Showing results 1 to 25 of 76

 
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