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Showing results 1 to 25 of 170
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Search: Posts Made By: skyfox
Forum: LIVE PLC Questions And Answers December 4th, 2017, 09:47 PM
Replies: 1
Views: 128
Posted By skyfox
CompactLogix -Fastest Datalog rate to SD Card

1769-L24ER-QB1B CPU / RsLogix 5k V20

Does anyone know the fastest rate data (Float Register data) can be log to the SD card? Can it be done at 10ms intervals?
Forum: LIVE PLC Questions And Answers July 19th, 2017, 12:32 PM
Replies: 6
Views: 332
Posted By skyfox
Hi Dirt, Thanks for the reply. I do not have a...

Hi Dirt,
Thanks for the reply. I do not have a model # at the moment. But the marking said 0-45 (not 75 my mistake) PSI (without the "A"). I am guessing "A" or absolute is implied here.
Forum: LIVE PLC Questions And Answers July 19th, 2017, 01:17 AM
Replies: 6
Views: 332
Posted By skyfox
Scaling a Multi Unit Pressure XMTR. How?

Good day all,

How does one go about scaling a pressure transmitter that indicates both Vacuum and pressure? The transmitter I have has a range of Vacuum to 75 PSI. I am trying to wrap my head...
Forum: LIVE PLC Questions And Answers June 15th, 2017, 06:11 PM
Replies: 53
Views: 4,249
Posted By skyfox
WOW! Seems 50/50. I was hoping for 90/10 sort of...

WOW! Seems 50/50. I was hoping for 90/10 sort of response. Thanks to all of you that replied. I guess more research is needed on the subject.

Cheers!!!!
Forum: LIVE PLC Questions And Answers June 15th, 2017, 03:13 AM
Replies: 53
Views: 4,249
Posted By skyfox
OK to Tie Powersupply Common to Chasis Ground?

Wondering what are the pros/cons of tying Power +24VDC supply Common to chassis (earth) ground. Is it OK to do so? I have seen some control panels where this is done and others without. I have also...
Forum: LIVE PLC Questions And Answers June 12th, 2017, 09:23 PM
Replies: 9
Views: 609
Posted By skyfox
Thanks daba. I was afraid of that. I was...

Thanks daba.

I was afraid of that. I was hoping to avoid that extra step. I eliminated IDX[x,y] array altogether and used a Tag (with a dynamic value) and used that along with a hard coded offset...
Forum: LIVE PLC Questions And Answers June 12th, 2017, 01:57 AM
Replies: 9
Views: 609
Posted By skyfox
One more Clarification...... "Both Data and...

One more Clarification......

"Both Data and IDX arrays have several 100 elements."


Meant to say over 100 elements in the Real World Application and not in the example.
Forum: LIVE PLC Questions And Answers June 11th, 2017, 11:18 PM
Replies: 9
Views: 817
Posted By skyfox
Thanks GaryS. You make a valid point and I...

Thanks GaryS.

You make a valid point and I can see how yours might be considerably faster. I would love to find out if both methods can be timed and see how efficient each method is over several...
Forum: LIVE PLC Questions And Answers June 11th, 2017, 11:03 PM
Replies: 9
Views: 609
Posted By skyfox
OK. I may not have explained my problem or what...

OK. I may not have explained my problem or what it is that I am after very clearly. I will give it another go.

This is a much simplified example. (Both Data and IDX arrays have several 100...
Forum: LIVE PLC Questions And Answers June 11th, 2017, 10:20 PM
Replies: 9
Views: 609
Posted By skyfox
\ nhatsen, Thank for the reply. I do...

\

nhatsen,

Thank for the reply. I do not have a Tech connect account any longer as the company is moving away from Rockwell/AB all together. We had 3 Tool kit licenses for the past 14 years....
Forum: LIVE PLC Questions And Answers June 11th, 2017, 05:02 PM
Replies: 9
Views: 609
Posted By skyfox
Indirect Addressing Not Working - Logix 5K

Hello All,

Bit puzzled as to why this indirect address is not working.


IDX[10,10] ' Two dimensional array of Constants
DATA[10] ' One Dimensional array

When indirectly addressing ...
Forum: LIVE PLC Questions And Answers June 11th, 2017, 04:53 PM
Replies: 9
Views: 817
Posted By skyfox
Hi GaryS, Now I understand what you were...

Hi GaryS,

Now I understand what you were trying to say. However, I still would like to know if there is a performance advantage over your method vs. the method cwal61 presented. I am sorting 6...
Forum: LIVE PLC Questions And Answers June 11th, 2017, 04:00 AM
Replies: 9
Views: 817
Posted By skyfox
GaryS, Thanks for the detailed response. In...

GaryS,

Thanks for the detailed response. In the past I have used a similar approach when displaying min/max values in real time on to an HMI display. However in that instance, I was only...
Forum: LIVE PLC Questions And Answers June 10th, 2017, 10:46 PM
Replies: 9
Views: 817
Posted By skyfox
cwal61, Thank you very much. This works...

cwal61,

Thank you very much. This works great. I didn't know you could alter the length that way and assumed control used the immediate value that was entered in to length parameter of the...
Forum: LIVE PLC Questions And Answers June 10th, 2017, 07:33 PM
Replies: 9
Views: 817
Posted By skyfox
Help Sorting a Dynamic Array (elements) in Logix 5K

Hello All,

Needing some help with finding Min max values in an array that can have a dynamic element count. The Sort function in Logix 5K only allows an immediate value for length. I am looking...
Forum: LIVE PLC Questions And Answers April 19th, 2017, 01:33 PM
Replies: 2
Views: 197
Posted By skyfox
CompactLogix -Can CF card be used as additional data memory?

Good day all,

Does anyone know if a 1769-L24ER-QB1B's CF card (or any logix cpu for that matter)can be used as additional data (Tag) memory by the cpu?

Thanks.
Forum: LIVE PLC Questions And Answers March 17th, 2017, 03:15 AM
Replies: 9
Views: 1,178
Posted By skyfox
Thank you all. Wow. Three different...

Thank you all.

Wow. Three different perspectives. That is unless I misunderstood Timbert (http://www.plctalk.net/qanda/member.php?u=84880)'s answer. For some reason or another (I tinkered around...
Forum: LIVE PLC Questions And Answers March 16th, 2017, 11:57 PM
Replies: 9
Views: 1,178
Posted By skyfox
Dual +/- Voltage Supply fusing. Both Legs?

Does anyone know when a sensor is using a Dual voltage Supply (+/- 15VDC) for it's source power, do both +15V and -15V supply to the sensor require fusing or, can a single Fuse be placed in series...
Forum: LIVE PLC Questions And Answers March 15th, 2017, 10:36 PM
Replies: 5
Views: 729
Posted By skyfox
Thanks for that helpful tip Ken. I was not aware...

Thanks for that helpful tip Ken. I was not aware of a Delimiter not being used with transmissions using CRC.
Forum: LIVE PLC Questions And Answers March 14th, 2017, 12:06 PM
Replies: 5
Views: 729
Posted By skyfox
Thanks Ken/harryting. Sorry Ken, The ASCII...

Thanks Ken/harryting.

Sorry Ken, The ASCII card was not for the Micrologix 1100 but for the 1500 which uses the same I/O as the Compactlogix platform. Before I spend a lot of time chasing ghosts,...
Forum: LIVE PLC Questions And Answers March 14th, 2017, 11:11 AM
Replies: 5
Views: 729
Posted By skyfox
Micrologix 1100 - Handling (Non DF-1) Serial Comms

Hello all,

A quick question. Can this PLC handle a custom RS-232 (or perhaps even RS485) protocol? I need to chop the incoming Bytes and process them individually to decode their values (Header,...
Forum: LIVE PLC Questions And Answers January 6th, 2016, 08:24 PM
Replies: 3
Views: 1,292
Posted By skyfox
jkerekes & Bullzi, Thanks for the info and...

jkerekes & Bullzi,

Thanks for the info and clarification.

Best Regards.
Forum: LIVE PLC Questions And Answers January 6th, 2016, 07:16 PM
Replies: 3
Views: 1,292
Posted By skyfox
AB/Rockwell Studio 5000 - Compactlogix L43 Support

Does anyone know why CompactLogix L4x Series are not supported with Rockwell's new Studio 5000 Software?

My understanding was that RsLogix 5000 got replaced by Studio 5000. Did Rockwell drop...
Forum: LIVE PLC Questions And Answers June 17th, 2015, 10:28 AM
Replies: 3
Views: 598
Posted By skyfox
Thanks TConnolly & Saffa, That is exactly...

Thanks TConnolly & Saffa,

That is exactly what I was looking for. I do have a Tech-connect Contract. Thanks for the Tech-note ID as well.

Cheers!
Forum: LIVE PLC Questions And Answers June 16th, 2015, 11:50 PM
Replies: 3
Views: 598
Posted By skyfox
ML1100 -Min to Hrs, Min, & seconds

Working with a Micrologix 1100 and trying to figure out how to get Hours, min and seconds from an integer minute value.

For example, 1230 minutes.

I want to convert it to Integer A= Hours B=...
Showing results 1 to 25 of 170

 
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