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Search: Posts Made By: daba
Forum: LIVE PLC Questions And Answers Yesterday, 10:52 AM
Replies: 3
Views: 104
Posted By daba
Yes, fixed time-base of mS So your 32-bit...

Yes, fixed time-base of mS


So your 32-bit accumulator is good for


2,147,483,647 mSec
2,147,483.647 Secs
35,791.39 Mins
596.52 Hrs
Forum: LIVE PLC Questions And Answers Yesterday, 10:47 AM
Replies: 21
Views: 996
Posted By daba
Would it not have been easier to just change your...

Would it not have been easier to just change your DINT arrays back into good-old 16-bit INT arrays and message them to your PLC5's directly ??


To be honest, the existence of the INT data-type is...
Forum: LIVE PLC Questions And Answers Yesterday, 10:25 AM
Replies: 12
Views: 327
Posted By daba
You can, of course, use AOI's written in any of...

You can, of course, use AOI's written in any of the four available languages. They don't have to be in ST just because the rest of the application is. Probably preferable to use one that is written,...
Forum: LIVE PLC Questions And Answers Yesterday, 10:16 AM
Replies: 4
Views: 186
Posted By daba
No, not possible. Source B is entered as...

No, not possible.


Source B is entered as a "literal" into the PLC code, not a "constant", and will not be changeable by anything.


The only way is to get access to the code for editing the...
Forum: LIVE PLC Questions And Answers October 12th, 2018, 04:06 PM
Replies: 24
Views: 1,091
Posted By daba
If KEP are in the mix, you have to give some...

If KEP are in the mix, you have to give some credence to Wieintek.


Commercially you've got to love the pricing.


Technically, there may be some challenges to overcome, (and that's the same...
Forum: LIVE PLC Questions And Answers October 8th, 2018, 05:04 PM
Replies: 8
Views: 265
Posted By daba
As we say over here, "as easy as falling off a...

As we say over here, "as easy as falling off a log".


You can have arrays of 1, 2, or 3 dimensions of any data-type, including structure UDT tags.


The only limitation is the maximum size of...
Forum: LIVE PLC Questions And Answers October 8th, 2018, 04:45 PM
Replies: 24
Views: 1,091
Posted By daba
Have a look at the offerings from Weintek...

Have a look at the offerings from Weintek (https://www.weintek.com/globalw/default.aspx)


Sometimes a bit quirky in the way they do things but overall great value for money.
Forum: LIVE PLC Questions And Answers September 27th, 2018, 09:50 AM
Replies: 10
Views: 343
Posted By daba
Put all your logic on one rung for best timing...

Put all your logic on one rung for best timing accuracy...


TON : XIC T.DN : PID : RES T


Better still, put the PID instruction (only) in a periodic task set to 20 seconds (that seems a long...
Forum: LIVE PLC Questions And Answers September 27th, 2018, 09:36 AM
Replies: 30
Views: 894
Posted By daba
All the formulae in the world are not going to...

All the formulae in the world are not going to give the most accurate results.

I don't believe there is a single tank in the world that conforms exactly to the "design specifications", both in...
Forum: LIVE PLC Questions And Answers September 14th, 2018, 08:56 AM
Replies: 4
Views: 209
Posted By daba
Nearly all good, except.... a. That GEQ...

Nearly all good, except....

a. That GEQ should be a GRT, or you will never address bit 15 of B3:7

b. B3:7/[N7:0] is a bit-level address, so it can only be used with bit instructions XIC, XIO...
Forum: LIVE PLC Questions And Answers September 5th, 2018, 04:41 AM
Replies: 1
Views: 247
Posted By daba
FTViewSE scroll bars.....

I'm testing an FTView SE application on a Windows 7 machine, and I've got scroll bars appearing for a display, but not initially.

The SE Client configuration is "Specify Client Window" at 1024 x...
Forum: LIVE PLC Questions And Answers September 3rd, 2018, 09:58 AM
Replies: 11
Views: 625
Posted By daba
Comments are optionally stored in the controller,...

Comments are optionally stored in the controller, not by default....


Yes tagnames are, but they're not comments....
Forum: LIVE PLC Questions And Answers August 10th, 2018, 05:17 AM
Replies: 2
Views: 293
Posted By daba
I would say that only an ON/OFF/ON configuration...

I would say that only an ON/OFF/ON configuration can provide the information needed by the controller. All 3 positions must not be momentary.


If your broken switch has only 3 lugs soldered into...
Forum: LIVE PLC Questions And Answers August 10th, 2018, 03:38 AM
Replies: 6
Views: 286
Posted By daba
Make it easier on yourself, no need for a FAL ......

Make it easier on yourself, no need for a FAL ...

Average (AVE) = SUM / Number of elements

So SUM = Average * Number of elements
Forum: LIVE PLC Questions And Answers August 10th, 2018, 03:06 AM
Replies: 20
Views: 1,100
Posted By daba
You cannot use COP to convert Integers to Real...

You cannot use COP to convert Integers to Real data-types.


I do not know the power monitor you are using, but would hazard a guess that the V/PF/A figures are Real values being passed in integer...
Forum: LIVE PLC Questions And Answers August 6th, 2018, 10:50 AM
Replies: 5
Views: 270
Posted By daba
Which I'm sure could be got with a CIP Generic...

Which I'm sure could be got with a CIP Generic Message, if you only knew the Service code, class and attribute numbers....
Forum: LIVE PLC Questions And Answers August 6th, 2018, 10:49 AM
Replies: 5
Views: 270
Posted By daba
Not without either..... 1. Having code...

Not without either.....


1. Having code already in place to monitor Controller objects using GSV. There is an "AuditValue" which can be configured to update on certain changes to the controller. ...
Forum: LIVE PLC Questions And Answers July 20th, 2018, 04:56 AM
Replies: 5
Views: 481
Posted By daba
I have just discovered that my V20 on the laptop...

I have just discovered that my V20 on the laptop is 20.00, and on the desktop it is V20.04


I am going to install V20.04 on the laptop.
Forum: LIVE PLC Questions And Answers July 19th, 2018, 12:02 PM
Replies: 5
Views: 481
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 July 19th, 2018, 11:02 AM
Replies: 5
Views: 481
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: 331
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: 422
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: 321
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: 380
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: 516
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...
Showing results 1 to 25 of 500

 
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