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Search: Posts Made By: daba
Forum: LIVE PLC Questions And Answers Today, 12:02 PM
Replies: 4
Views: 89
Posted By daba
I don't believe that is the issue - on my desktop...

I don't believe that is the issue - on my desktop PC .ACD files are associated with "Logix Designer Project" - "Component of the Logix Designer Application", and that PC opens pre Logix Designer...
Forum: LIVE PLC Questions And Answers Today, 11:02 AM
Replies: 4
Views: 89
Posted By daba
Logix5000 V20 ACD start Logix Designer V21

Strange things happening....

I have a bunch of RSLogix5000 V20 .ACD files that open perfectly well on my desktop PC, but when I try to open them on my laptop, they try to open with V21 (Logix...
Forum: LIVE PLC Questions And Answers July 17th, 2018, 07:03 AM
Replies: 3
Views: 114
Posted By daba
Do a cross-reference on N21, and check to see...

Do a cross-reference on N21, and check to see that only that MOV is writing to it. It makes it easy to double-click the header of the "Destructive" column a couple of time to get the "Y" indications...
Forum: LIVE PLC Questions And Answers July 17th, 2018, 06:42 AM
Replies: 8
Views: 244
Posted By daba
I assume you are using 2 INTs to transfer the...

I assume you are using 2 INTs to transfer the REAL to another processor ?


If so, COP will work for both conversions, since COP does absolutely nothing to the bit patterns, it will re-create the...
Forum: LIVE PLC Questions And Answers July 17th, 2018, 06:27 AM
Replies: 2
Views: 104
Posted By daba
Don't the attributes "ChassisRedundancy State",...

Don't the attributes "ChassisRedundancy State", and "PartnerChassis RedundancyState" tell you this information ?
Forum: LIVE PLC Questions And Answers July 17th, 2018, 04:51 AM
Replies: 4
Views: 178
Posted By daba
Any "Non-Recoverable Major Fault" will result in...

Any "Non-Recoverable Major Fault" will result in the processor dumping its program, it's a safeguard against trying to run with a corrupted program or data or a hardware fault.

Diagnostic...
Forum: LIVE PLC Questions And Answers July 14th, 2018, 06:59 AM
Replies: 3
Views: 283
Posted By daba
What have you set the channel configuration to ??...

What have you set the channel configuration to ??

The channel input data is an INT value, and a simple MOV instruction to a REAL tag will automatically convert it.

But that is not what you...
Forum: LIVE PLC Questions And Answers July 13th, 2018, 11:03 AM
Replies: 6
Views: 264
Posted By daba
You most certainly can delete unused UDTs. ...

You most certainly can delete unused UDTs.


Make sure it is not referenced anywhere, and that includes SCADA and HMI systems. If it has ever been "on scan" from an external device, the "Delete"...
Forum: LIVE PLC Questions And Answers July 12th, 2018, 12:16 PM
Replies: 18
Views: 751
Posted By daba
That keyswitch on the front of the processor is...

That keyswitch on the front of the processor is about as secure as a chocolate teapot.


A carefully filed terminal screwdriver is all it needs to turn it. I have seen it done many times, even...
Forum: LIVE PLC Questions And Answers July 12th, 2018, 10:00 AM
Replies: 18
Views: 751
Posted By daba
RS5000 & Studio5000 are part of the FactoryTalk...

RS5000 & Studio5000 are part of the FactoryTalk suite, and as such security can be configured with privileges per user.
Forum: LIVE PLC Questions And Answers July 11th, 2018, 10:01 AM
Replies: 2
Views: 116
Posted By daba
Where is the source of this REAL value coming...

Where is the source of this REAL value coming from ?


If it is an analog input, they invariable change all the time, due to noise pickup, sensor drift, etc.


You will need to specify to the...
Forum: LIVE PLC Questions And Answers July 11th, 2018, 08:43 AM
Replies: 12
Views: 453
Posted By daba
How many times do you need to instantiate the AOI...

How many times do you need to instantiate the AOI ?


If it is up to 32, you could use the bits of a DINT to trigger each AOI, and clear the DINT immediately, sort of like a ONS arrangement... It...
Forum: LIVE PLC Questions And Answers July 11th, 2018, 06:13 AM
Replies: 12
Views: 453
Posted By daba
Now that I have actually ran that code, I can see...

Now that I have actually ran that code, I can see the problem you are having.


The fact is that the AOI instruction will always "map" the input data into the "Input" parameters, and always "map"...
Forum: LIVE PLC Questions And Answers July 8th, 2018, 11:52 AM
Replies: 17
Views: 717
Posted By daba
From Post #7 Pic 2 "calls" the routine...

From Post #7


Pic 2 "calls" the routine 100 times


Pic 3 is what is inside the routine


nothing else needed, all timers will reset in one scan
Forum: LIVE PLC Questions And Answers July 8th, 2018, 10:26 AM
Replies: 7
Views: 733
Posted By daba
And nobody has mentioned this either... ...

And nobody has mentioned this either...


If another processor is writing to this one, you will not be able to get a cross-reference, or a search, or anything, to tell you where the data is coming...
Forum: LIVE PLC Questions And Answers July 8th, 2018, 09:49 AM
Replies: 12
Views: 453
Posted By daba
Well that is how it should be, the PLC does not...

Well that is how it should be, the PLC does not know what you will be doing in your "EnableInFalse" routine, so it passes the AOI tags in anyway... But you are not doing the MOV instructions when the...
Forum: LIVE PLC Questions And Answers July 8th, 2018, 09:45 AM
Replies: 12
Views: 453
Posted By daba
Freddy_C, please post your AOI parameters and...

Freddy_C, please post your AOI parameters and local tags declarations.


I cannot see anything wrong with the code, and it looks to me like Move_2 was the last to be executed, as the _OUTs have...
Forum: LIVE PLC Questions And Answers July 8th, 2018, 09:38 AM
Replies: 12
Views: 453
Posted By daba
No he isn't... 3rd pic shows two separate AOI...

No he isn't... 3rd pic shows two separate AOI tags, Move_Forward and Move_Reverse.


I had the same thought though...
Forum: LIVE PLC Questions And Answers July 8th, 2018, 03:16 AM
Replies: 12
Views: 453
Posted By daba
No, not really... From your description, it...

No, not really...

From your description, it sounds like you have put the same code in the"EnableInFalse" routine as you have in the normal routine. If all you want to do is reset some outputs,...
Forum: LIVE PLC Questions And Answers July 8th, 2018, 01:50 AM
Replies: 17
Views: 717
Posted By daba
Just to make it clear, the FOR instruction calls...

Just to make it clear, the FOR instruction calls the subroutine the requested number of times each time the instruction is executed, not once per scan of the ladder logic.


I often use it to...
Forum: LIVE PLC Questions And Answers July 7th, 2018, 08:13 PM
Replies: 17
Views: 717
Posted By daba
Yes FOR {Index} = {initial value} to...

Yes


FOR {Index} = {initial value} to {terminal value} step {step size}

JSR {routine name}
Forum: LIVE PLC Questions And Answers July 7th, 2018, 04:18 AM
Replies: 6
Views: 414
Posted By daba
Leaving edits in a processor, so that you can...

Leaving edits in a processor, so that you can switch them on and off as you described, is never going to be a good idea, and presumably you now know the reason why. The other thing to consider is...
Forum: LIVE PLC Questions And Answers July 7th, 2018, 03:27 AM
Replies: 17
Views: 717
Posted By daba
Clearing the Accumulators is easy with a FAL...

Clearing the Accumulators is easy with a FAL instruction (See Pic 1), but that will not clear the .DN bits for any timers that have completed.



Probably the cleanest approach is to use a FOR...
Forum: LIVE PLC Questions And Answers July 5th, 2018, 12:22 PM
Replies: 4
Views: 254
Posted By daba
If you do this, make sure you document it... You...

If you do this, make sure you document it... You can do this in the "Description" panel of the remote producer.


Someone, somewhere down the line, is going to be looking at the I/O configuration...
Forum: LIVE PLC Questions And Answers June 30th, 2018, 12:03 PM
Replies: 2
Views: 302
Posted By daba
You didn't mention if "Working Table" UDTag is...

You didn't mention if "Working Table" UDTag is embedded within another UDTag.


If they are, it is entirely possible for another COP, CPS, or FLL to trample over your UDTags if their length...
Showing results 1 to 25 of 500

 
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