You are not registered yet. Please click here to register!


 
 
plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
 
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!


Go Back   PLCS.net - Interactive Q & A > Search Forums

Showing results 1 to 25 of 500
Search took 0.17 seconds.
Search: Posts Made By: daba
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 01:23 PM
Replies: 10
Views: 225
Posted By daba
Glad you got it working.... In the future...

Glad you got it working....

In the future steer clear of BOOL arrays - as I said they are not much use because you can't do a fat lot with them.

If you REALLY MUST use a BOOL array for any...
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 01:01 PM
Replies: 10
Views: 225
Posted By daba
I had assumed you already had your BOOL array -...

I had assumed you already had your BOOL array - i.e. a tag of data-type BOOL[nn], where nn is the size of the BOOL array.

BOOL_Array[BitIndex] is an indirect address to element BitIndex of the...
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 12:38 PM
Replies: 10
Views: 225
Posted By daba
Just make sure your FOR Initial and Terminal...

Just make sure your FOR Initial and Terminal values are correct for the BOOL Array size, eg 0-31 for a 32-bit array, 0-127 for a 128-bit array and so on.

The other thing to know is that when you...
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 11:19 AM
Replies: 10
Views: 225
Posted By daba
There are several methods, some involving...

There are several methods, some involving "bit-hacks", but the biggest problem is that BOOL arrays in Logix5000 are just so unfriendly to w work with, and you can't easily copy them into DINTs for...
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 08:53 AM
Replies: 10
Views: 225
Posted By daba
A little more information would be needed. ...

A little more information would be needed.

What "addition" are you needing ?

Do you want to know how many of your BOOL array bits are on ?
Forum: LIVE PLC Questions And Answers February 20th, 2018, 12:34 PM
Replies: 26
Views: 680
Posted By daba
It is the Math Overflow Trap bit you have to...

It is the Math Overflow Trap bit you have to unlatch S:5/0, not the Math Overflow Status bit, S:0/1.

Unlatching it after every instruction that affects the math status bits is a bit overkill,...
Forum: LIVE PLC Questions And Answers February 20th, 2018, 12:17 PM
Replies: 19
Views: 4,326
Posted By daba
Try setting the PLC address above the DHCP range,...

Try setting the PLC address above the DHCP range, e.g. 192.168.1.20 - it might help.
Forum: LIVE PLC Questions And Answers February 18th, 2018, 11:41 AM
Replies: 16
Views: 324
Posted By daba
That, my friend, would come as no surprise... ...

That, my friend, would come as no surprise... :smas:
Forum: LIVE PLC Questions And Answers February 18th, 2018, 11:38 AM
Replies: 16
Views: 324
Posted By daba
I don't have publications, and what training...

I don't have publications, and what training material I have stays with me on training courses I provide, but that's only UK unfortunately.

I find that if you stick to a training "script", you are...
Forum: LIVE PLC Questions And Answers February 18th, 2018, 11:20 AM
Replies: 16
Views: 324
Posted By daba
No, read answer 4 above.... "Connections" is...

No, read answer 4 above....

"Connections" is a logical term, connections (without the "") is a physical term

If it helps, replace "CIP Connections" with "Data-Links", or something similar....
...
Forum: LIVE PLC Questions And Answers February 18th, 2018, 11:16 AM
Replies: 16
Views: 324
Posted By daba
Thank you for your kind words. In order.... ...

Thank you for your kind words.

In order....

1. Most times people use two (or more) Ethernet bridge modules in a controller chassis to physically segregate the networks. One for I/O another for...
Forum: LIVE PLC Questions And Answers February 18th, 2018, 06:50 AM
Replies: 16
Views: 324
Posted By daba
I'll try and make this simple, but if you want...

I'll try and make this simple, but if you want more info, just ask.

A CIP "connection" is a data transfer link between two devices.

A connection uses the "Producer/Consumer" model of data...
Forum: LIVE PLC Questions And Answers February 15th, 2018, 07:05 PM
Replies: 12
Views: 8,920
Posted By daba
Absolutely 100% behind this. In all cases,...

Absolutely 100% behind this.

In all cases, if you don't know the password, you are locked out.

Some, not all, manufacturers can, either directly, or indirectly, provide a password bypass, but...
Forum: LIVE PLC Questions And Answers February 14th, 2018, 07:05 PM
Replies: 4
Views: 162
Posted By daba
+1

+1
Forum: LIVE PLC Questions And Answers February 14th, 2018, 06:13 PM
Replies: 55
Views: 19,707
Posted By daba
I don't know if this has already been said in...

I don't know if this has already been said in this huge thread, but a potential problem with using NO and NC is when they are used with real, physical, PLC inputs.

A "NO" instruction could be...
Forum: LIVE PLC Questions And Answers February 14th, 2018, 05:33 PM
Replies: 4
Views: 162
Posted By daba
You already get a dialog box that contains many...

You already get a dialog box that contains many warnings before finally committing to a download.

Or, you can use the key to put the processor into RUN mode, downloads are impossible in that mode.
Forum: LIVE PLC Questions And Answers February 14th, 2018, 10:43 AM
Replies: 9
Views: 330
Posted By daba
No, Logix5000 is not compatible with Logix500. ...

No, Logix5000 is not compatible with Logix500.

There never was an export to XML with the RSLogix500 software, that only came in with RSLogix5000, but it used the file extension L5X, not XML

I...
Forum: LIVE PLC Questions And Answers February 14th, 2018, 07:23 AM
Replies: 6
Views: 133
Posted By daba
0021H is not listed as an Error Code, so a...

0021H is not listed as an Error Code, so a "User-Generated" code may be what you are seeing.

You may want to examine status words S:20 and S:21 in your routine to pinpoint the file and rung...
Forum: LIVE PLC Questions And Answers February 12th, 2018, 08:20 PM
Replies: 55
Views: 19,707
Posted By daba
Absolutely !!! I stand corrected - got...

Absolutely !!!

I stand corrected - got confused with the thread
Forum: LIVE PLC Questions And Answers February 12th, 2018, 08:03 PM
Replies: 55
Views: 19,707
Posted By daba
Well you got that 100% wrong... NO =...

Well you got that 100% wrong...

NO = Normally Open, in its default (normal) state, it is Open, so no current can "pass".

NC = Normally Closed, in its default (normal) state, it is Closed, so...
Forum: LIVE PLC Questions And Answers February 11th, 2018, 09:54 AM
Replies: 3
Views: 169
Posted By daba
In Logix500 (SLC etc.) the processor name can be...

In Logix500 (SLC etc.) the processor name can be anything as well, but it is not shown in RSLogix500 title bar as RSLogix5000 does.

Logix500 processor name is limited to 8 characters.
Forum: LIVE PLC Questions And Answers February 11th, 2018, 09:42 AM
Replies: 17
Views: 934
Posted By daba
That doesn't "disable" the code at all, it will...

That doesn't "disable" the code at all, it will just make the rungs false (if the BOOL is TRUE), but the code will still be scanned, not the same as "disabling" it.
Forum: LIVE PLC Questions And Answers February 11th, 2018, 09:39 AM
Replies: 17
Views: 934
Posted By daba
The RSLogix5000 Trend tool will allow 10mS...

The RSLogix5000 Trend tool will allow 10mS timebase, but will only allow up to 8 tags per trend.

Two trends of 5 tags each ???
Forum: LIVE PLC Questions And Answers February 11th, 2018, 09:31 AM
Replies: 3
Views: 169
Posted By daba
The filename is usually the processor name, as it...

The filename is usually the processor name, as it appears in the windows title bar, see first photo.

But if they don't match it's not a problem, as the title bar reflects this, see photo 2.

I...
Forum: LIVE PLC Questions And Answers February 11th, 2018, 07:56 AM
Replies: 7
Views: 277
Posted By daba
Calibration of an input module requires that you...

Calibration of an input module requires that you disconnect your normal input signals, so that you can inject precision signals.

Obviously this will be detrimental to the process, so it should not...
Showing results 1 to 25 of 500

 
Forum Jump

All times are GMT -5. The time now is 06:53 AM.


.