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Search: Posts Made By: Aardwizz
Forum: LIVE PLC Questions And Answers April 12th, 2019, 09:06 AM
Replies: 8
Views: 414
Posted By Aardwizz
Depending on circumstances, the PLC may detect an...

Depending on circumstances, the PLC may detect an alarm condition and take an action which then causes the alarm condition to no longer be true. If this happens quickly, the HMI, which is monitoring...
Forum: LIVE PLC Questions And Answers March 17th, 2019, 03:22 AM
Replies: 67
Views: 5,087
Posted By Aardwizz
You are paying me to take the blame after I'm...

You are paying me to take the blame after I'm gone.
Forum: LIVE PLC Questions And Answers January 23rd, 2019, 09:50 AM
Replies: 4
Views: 310
Posted By Aardwizz
It might be easier to skip the UDT, and simply...

It might be easier to skip the UDT, and simply use the AOI's data structure as your drive definitions.

This makes coding super simple.
If you have your INT as in Input parameter to the AOI (with...
Forum: LIVE PLC Questions And Answers January 10th, 2019, 03:48 PM
Replies: 6
Views: 505
Posted By Aardwizz
It really depends on what you mean by "recipe". ...

It really depends on what you mean by "recipe".

For some, a recipe is just the "amounts" -- setpoints for time, speed, temperature, etc.

For others, a recipe is all that PLUS the sequence of...
Forum: LIVE PLC Questions And Answers December 30th, 2018, 02:52 PM
Replies: 58
Views: 5,247
Posted By Aardwizz
My RESPONSE to the funniest thing I heard was: ...

My RESPONSE to the funniest thing I heard was:

"You want it by WHEN?"

I couldn't stop laughing....
Forum: LIVE PLC Questions And Answers December 27th, 2018, 10:12 AM
Replies: 8
Views: 718
Posted By Aardwizz
N35 is not "an analog file", per se. It is...

N35 is not "an analog file", per se. It is merely an array of addressable integers, which can be addressed at the bit, word, or group-of-words ("file") level. There is nothing odd about using a bit...
Forum: LIVE PLC Questions And Answers December 21st, 2018, 10:23 AM
Replies: 6
Views: 402
Posted By Aardwizz
Instead of moving a zero into the .LEN of the...

Instead of moving a zero into the .LEN of the Read string, why not just CPS a "blank" string (no data, zero length) into the Read string after the storage CPS?

The problem could be with how the...
Forum: LIVE PLC Questions And Answers December 15th, 2018, 09:11 AM
Replies: 4
Views: 519
Posted By Aardwizz
There are two pieces to this puzzle: sequencing...

There are two pieces to this puzzle: sequencing and visualization.

parky talked breifly on sequencing. Basically, you need to create your own sequencer that will read an array (or structure) of...
Forum: LIVE PLC Questions And Answers December 14th, 2018, 11:21 AM
Replies: 9
Views: 649
Posted By Aardwizz
A simple method is to create a routine with all...

A simple method is to create a routine with all the code you like, including AOIs and whatnot.

In the program tree, right click on it and select "Export Routine". This could be saved in your...
Forum: LIVE PLC Questions And Answers December 14th, 2018, 11:05 AM
Replies: 25
Views: 1,030
Posted By Aardwizz
I have a system similar to yours: a stand-alone...

I have a system similar to yours: a stand-alone "box" that supplies cooled / heated glycol to a tank jacket, and a desire to control the temperature in the tank. Long delays before the temperate...
Forum: LIVE PLC Questions And Answers December 7th, 2018, 12:25 PM
Replies: 13
Views: 719
Posted By Aardwizz
Essentially, it's useless. The OP was insisting...

Essentially, it's useless. The OP was insisting that AB work like he's used to with Siemens, where he could drop a timer block on a rung and have the output of the block not be "hot" until the timer...
Forum: LIVE PLC Questions And Answers December 7th, 2018, 10:22 AM
Replies: 13
Views: 719
Posted By Aardwizz
In AB Ladder, the only thing that gets tied to...

In AB Ladder, the only thing that gets tied to the output of a block is a hidden "EnableOut". Since in a TON instruction, this is logically equivalent to the EnableIn, which is the same as the .EN...
Forum: LIVE PLC Questions And Answers December 7th, 2018, 06:41 AM
Replies: 38
Views: 3,453
Posted By Aardwizz
I had something of this kind of situation, where...

I had something of this kind of situation, where I had a continuous task that needed to send a one-shot bit signal to a periodic task. Sometimes the periodic task got the signal, sometimes the...
Forum: LIVE PLC Questions And Answers November 22nd, 2018, 03:11 PM
Replies: 7
Views: 494
Posted By Aardwizz
Don't bother trying to set up the destination in...

Don't bother trying to set up the destination in the DEFINITION of the AOI, but only in each individual INSTANCE of the AOIs.

You will need to have a unique MESSAGE type tag for each drive you...
Forum: LIVE PLC Questions And Answers November 20th, 2018, 09:11 AM
Replies: 13
Views: 354
Posted By Aardwizz
Alternatively, to the <EDIT TAGS> tab of the...

Alternatively, to the <EDIT TAGS> tab of the Controller Tags. At the bottom of the list, type VibNumBad in the Name column, and change the Data Type from "DINT" to "DINT[19]".

If doing this...
Forum: LIVE PLC Questions And Answers November 16th, 2018, 08:17 AM
Replies: 7
Views: 523
Posted By Aardwizz
If RSLinx is running, open it, go to DDE/OPC >>...

If RSLinx is running, open it, go to DDE/OPC >> Topic Configuration.

Click on your testsol topic in the left-hand pane. Does the target PLC get shown with a light gray highlight?

If not, your...
Forum: LIVE PLC Questions And Answers November 14th, 2018, 05:04 PM
Replies: 3
Views: 389
Posted By Aardwizz
For a more elegant solution, make the DInt tag an...

For a more elegant solution, make the DInt tag an ALIAS to the Timer.PRE. The DInt tag is an Input, and so is exposed outside of the AOI. The timer is Local scoped.

Because it's an alias, no MOV...
Forum: LIVE PLC Questions And Answers November 14th, 2018, 06:53 AM
Replies: 15
Views: 1,117
Posted By Aardwizz
Nothing, if you're only interested in the number...

Nothing, if you're only interested in the number of times the motor gets started. But since you seem to be using the counter to open a door and turn on a lamp, that probably isn't going to be very...
Forum: LIVE PLC Questions And Answers November 13th, 2018, 12:42 PM
Replies: 9
Views: 512
Posted By Aardwizz
Ideally, to keep the functionality intact, the...

Ideally, to keep the functionality intact, the tag N21_31 should be an alias to N21[31].

While Logix5000 is not able to handle double indexes ("B28[N21[31]]"), the alias makes the inner indirect a...
Forum: LIVE PLC Questions And Answers November 8th, 2018, 09:47 AM
Replies: 28
Views: 1,435
Posted By Aardwizz
A course. As in 'one'? Repetition is where...

A course. As in 'one'? Repetition is where skills get honed.

But you may have a better, more well rounded program than some I've seen (or at least seen the outputs from those programs). ...
Forum: LIVE PLC Questions And Answers November 8th, 2018, 09:04 AM
Replies: 28
Views: 1,435
Posted By Aardwizz
I disagree! More than a little of an actual...

I disagree!

More than a little of an actual engineering job requires an ability to communicate complex, technical information to other audiences. Proposals, Functional specifications, Reports,...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 10:43 AM
Replies: 7
Views: 489
Posted By Aardwizz
The "16" is slot of the ethernet card, not the...

The "16" is slot of the ethernet card, not the processor where the data lives.

Rather than trying to figure out what the correct path is, add the 1756-ENBT to your CompactLogix tree (on the...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 09:04 AM
Replies: 28
Views: 1,435
Posted By Aardwizz
And that kind of life sounds like the pits too. ...

And that kind of life sounds like the pits too.

Yeah, long-term travel can suck. Most plants are located in Podunk, on the outskirts of "Where?". There are often only a handful of places to eat,...
Forum: LIVE PLC Questions And Answers November 7th, 2018, 08:02 AM
Replies: 28
Views: 1,435
Posted By Aardwizz
It's a nice dream. And I suppose that I'm kinda...

It's a nice dream. And I suppose that I'm kinda living that dream now. I've been on the road, pretty much straight, for 2 years now. I'm currently in England (I'm American), and have been for the...
Forum: LIVE PLC Questions And Answers November 6th, 2018, 11:24 AM
Replies: 8
Views: 408
Posted By Aardwizz
Is there anything else that writes to DUMMY2? ...

Is there anything else that writes to DUMMY2? (Select the tag, do a CTRL+E to see if it is used elsewhere in the code).

What happens if you type a random number where the blue arrow is under the...
Showing results 1 to 25 of 213

 
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