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Search: Posts Made By: Aardwizz
Forum: LIVE PLC Questions And Answers December 15th, 2018, 10:11 AM
Replies: 4
Views: 333
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, 12:21 PM
Replies: 9
Views: 382
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, 12:05 PM
Replies: 25
Views: 737
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, 01:25 PM
Replies: 13
Views: 519
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, 11:22 AM
Replies: 13
Views: 519
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, 07:41 AM
Replies: 31
Views: 1,245
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, 04:11 PM
Replies: 7
Views: 273
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, 10:11 AM
Replies: 13
Views: 166
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, 09:17 AM
Replies: 7
Views: 374
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, 06:04 PM
Replies: 3
Views: 244
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, 07:53 AM
Replies: 15
Views: 829
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, 01:42 PM
Replies: 9
Views: 360
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, 10:47 AM
Replies: 28
Views: 1,060
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, 10:04 AM
Replies: 28
Views: 1,060
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, 11:43 AM
Replies: 7
Views: 277
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, 10:04 AM
Replies: 28
Views: 1,060
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, 09:02 AM
Replies: 28
Views: 1,060
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, 12:24 PM
Replies: 8
Views: 278
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...
Forum: LIVE PLC Questions And Answers November 6th, 2018, 12:12 PM
Replies: 8
Views: 278
Posted By Aardwizz
Welcome to the forum. There are many things...

Welcome to the forum.

There are many things that it COULD be. A screenshot of the rung, attached to a post would be very helpful to us.

Since you can see the value of LOCAL:4:I.... change, you...
Forum: LIVE PLC Questions And Answers November 6th, 2018, 11:50 AM
Replies: 2
Views: 215
Posted By Aardwizz
Welcome to the forum! Unfortunately, your...

Welcome to the forum!

Unfortunately, your picture did not attach, so we aren't able to help you.

Also, a word or warning. The community does not DO your homework for you. Post what YOU think...
Forum: LIVE PLC Questions And Answers November 6th, 2018, 11:08 AM
Replies: 4
Views: 180
Posted By Aardwizz
You might try doing a DBDUMP (which is a...

You might try doing a DBDUMP (which is a stand-alone .exe) which <<should>> export your Tagname DB into a CSV file. You can then view this in Excel to verify your alarms. If you've lived a virtuous...
Forum: LIVE PLC Questions And Answers November 6th, 2018, 04:09 AM
Replies: 4
Views: 326
Posted By Aardwizz
There's no single function to do what you want...

There's no single function to do what you want (well.... maybe), in part because what you want may not be what you really want.

First off, how are the "run-meter"s stored in the PLC? Are they a...
Forum: LIVE PLC Questions And Answers October 21st, 2018, 06:55 AM
Replies: 6
Views: 379
Posted By Aardwizz
The "simple" fix is to one-shot your Difference...

The "simple" fix is to one-shot your Difference calculation line. Doing so will prevent the Difference, Absolute_Difference, and Ramp_Value tags from changing until Current_Value = New_Value again...
Forum: LIVE PLC Questions And Answers October 17th, 2018, 03:27 PM
Replies: 3
Views: 210
Posted By Aardwizz
ANYTHING should be able to access a Read/Write...

ANYTHING should be able to access a Read/Write enabled Local AOI string tag. I've done it with Intouch / System Platform for example.

Strings can be tricky things for communication drivers to...
Forum: LIVE PLC Questions And Answers October 17th, 2018, 03:17 PM
Replies: 5
Views: 204
Posted By Aardwizz
If the tag Source is a Local scoped tag to the...

If the tag Source is a Local scoped tag to the AOI, you can create a tag SourceLEN that is an ALIAS to Source.LEN, but is itself an Input tag to the AOI.

I use this trick all the time with Timer...
Showing results 1 to 25 of 206

 
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