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Search: Posts Made By: williamlove
Forum: LIVE PLC Questions And Answers March 11th, 2016, 11:21 AM
Replies: 23
Views: 3,935
Posted By williamlove
UPDATE: After doing my startup I'm sorry to say I...

UPDATE: After doing my startup I'm sorry to say I can't recommend AOIs for any logic that you even just might have to change under pressure. It’s too bad because it is a true subroutine and is...
Forum: LIVE PLC Questions And Answers February 4th, 2016, 02:25 AM
Replies: 23
Views: 3,935
Posted By williamlove
At first I didnít understand your answer because...

At first I didnít understand your answer because it didnít seem an advantage to have separate programs over separate routines. If you read my comment in an email it probably changed over what you see...
Forum: LIVE PLC Questions And Answers February 4th, 2016, 02:11 AM
Replies: 23
Views: 3,935
Posted By williamlove
Content deleted, please see next reply.

Content deleted, please see next reply.
Forum: LIVE PLC Questions And Answers January 30th, 2016, 12:53 PM
Replies: 23
Views: 3,935
Posted By williamlove
Paully, I will explain my system as briefly as I...

Paully, I will explain my system as briefly as I can before I ask a question pertaining to your response. I hope you will read the description; but the question is clearly separated in the last...
Forum: LIVE PLC Questions And Answers January 29th, 2016, 09:18 PM
Replies: 23
Views: 3,935
Posted By williamlove
I said I'd update this if I actually tried it out...

I said I'd update this if I actually tried it out on a live system and I have.

This discussion pertains to a situation like having 20 burner sequences and you want to write one routine instead of...
Forum: LIVE PLC Questions And Answers January 24th, 2016, 03:06 PM
Replies: 23
Views: 3,935
Posted By williamlove
Paully, thanks for your time. But the answer to...

Paully, thanks for your time. But the answer to your question in the second paragraph is no. I'm asking for a comparison between routines and AOI, not programs and AOI. I will thank you again for...
Forum: LIVE PLC Questions And Answers January 24th, 2016, 01:42 PM
Replies: 23
Views: 3,935
Posted By williamlove
I looked at that TN 50182. It does not really...

I looked at that TN 50182. It does not really answer my question although it hints at subroutines not quite being as good as AOIs. I say that based on the two rows called "Data Encapsulation" and...
Forum: LIVE PLC Questions And Answers January 24th, 2016, 12:50 AM
Replies: 23
Views: 3,935
Posted By williamlove
I am asking for someone experienced with the new...

I am asking for someone experienced with the new features of subroutines (parameters) to compare it to the functionality of an AOI. Is there anything one can do that the other simply cannot? It...
Forum: LIVE PLC Questions And Answers January 23rd, 2016, 01:40 PM
Replies: 23
Views: 3,935
Posted By williamlove
Question ControlLogix AOI versus Subroutine

I have been using AOI instructions as true subroutines. They have transformed my programming practices since I started doing that a couple years ago. I never used subroutines before, except to...
Forum: LIVE PLC Questions And Answers January 19th, 2016, 10:25 PM
Replies: 4
Views: 550
Posted By williamlove
I got that method to work. I hadn't been told...

I got that method to work. I hadn't been told about that /T way of doing this. I almost created a bunch of parameter files. I'd heard there is no indirect addressing in SE but this method really sort...
Forum: LIVE PLC Questions And Answers January 19th, 2016, 09:46 PM
Replies: 4
Views: 550
Posted By williamlove
Its intriguing and I hope it will work. I've...

Its intriguing and I hope it will work. I've never used the /T before. I'm using UDTs in Logix.

One of the actual tags I'm trying to pass is Molds[1].Permissive.RobotFree where [1] is the mold...
Forum: LIVE PLC Questions And Answers January 19th, 2016, 09:17 PM
Replies: 4
Views: 550
Posted By williamlove
Question FT SE: A parameter file for every pump?

[For clarity and brevity I will make this example more simple than what I actually have. I'm using FactoryTalk SE ver 8, local app.]

Let's say I have a screen called Pump with one display object,...
Forum: LIVE PLC Questions And Answers January 6th, 2016, 01:09 PM
Replies: 4
Views: 916
Posted By williamlove
I think what driver is used to read/write a...

I think what driver is used to read/write a ControlLogix tag might affect whether it is a zero length string, a blank string, or a null. And I don't really understand this matter too a great extent....
Forum: LIVE PLC Questions And Answers January 5th, 2016, 03:20 PM
Replies: 6
Views: 794
Posted By williamlove
No ladies on here? Maybe not.:bawling: ...

No ladies on here? Maybe not.:bawling:



I think that is what he's saying and I know that solution has worked for me in some situations.
Forum: LIVE PLC Questions And Answers January 5th, 2016, 02:05 PM
Replies: 3
Views: 656
Posted By williamlove
I question the use of Excel here. Depending on...

I question the use of Excel here. Depending on how you and the plant value your time (and in the spirit of not reinventing the wheel) I think you should look at solutions such as a Data Historian as...
Forum: LIVE PLC Questions And Answers January 5th, 2016, 11:57 AM
Replies: 4
Views: 916
Posted By williamlove
Null vs Blank in a string tag

I'm inquiring about what happens when a VB program writes a null to the value in a string tag in the Logix program called MyString. I am using "null" to mean precisely what it is in a VB program.
...
Forum: LIVE PLC Questions And Answers July 21st, 2015, 11:09 AM
Replies: 15
Views: 2,269
Posted By williamlove
Its a running system but its 2000 miles away and...

Its a running system but its 2000 miles away and I can't try it. I appreciate the time you guys (Mickey and John) spent and I have been pouring over that manual which is why I know what words 1,3,...
Forum: LIVE PLC Questions And Answers July 20th, 2015, 11:54 PM
Replies: 15
Views: 2,269
Posted By williamlove
If I knew that I would have the answer I seek....

If I knew that I would have the answer I seek. But 10 volts is 10 volts regardless of the nature of the device producing it, right? The question is what does the PLC do with it.

Let me ask the...
Forum: LIVE PLC Questions And Answers July 20th, 2015, 08:05 PM
Replies: 15
Views: 2,269
Posted By williamlove
We're not retaining the IFE, we're replacing it...

We're not retaining the IFE, we're replacing it with a 1756-IF16 card in the ControlLogix.

My ultimate aim and really my sole aim is to get the EU scaling values so I can enter them in the High...
Forum: LIVE PLC Questions And Answers July 20th, 2015, 07:02 PM
Replies: 15
Views: 2,269
Posted By williamlove
I just want add, I am working with an uploaded...

I just want add, I am working with an uploaded program that runs fine. I will convert it to Logix. The manual describes 9999 as the largest number you can enter for the scaling max but since you...
Forum: LIVE PLC Questions And Answers July 20th, 2015, 05:35 PM
Replies: 15
Views: 2,269
Posted By williamlove
Question PLC-5 1771-IFE maximum scaled value

My question is, when there is 10V on the first channel of an 1771-IFE card, what decimal value will show up in the data file word (happens to be N7:104) assigned to channel 1?

Here are the...
Forum: LIVE PLC Questions And Answers January 9th, 2014, 04:33 PM
Replies: 24
Views: 18,860
Posted By williamlove
Thanks, that was very helpful response and I...

Thanks, that was very helpful response and I appreciate it.
Forum: LIVE PLC Questions And Answers January 9th, 2014, 01:21 PM
Replies: 24
Views: 18,860
Posted By williamlove
Micrologix 850 programming experiences

My company is considering using the Rockwell Micro 850 for our machine's controller. Can you give me a candid assessment of this controller? (Especially from the programming and program...
Forum: LIVE PLC Questions And Answers November 27th, 2012, 06:19 PM
Replies: 0
Views: 508
Posted By williamlove
Question PV update rate based on sensor response time

I am using a CompactLogix with a 1769-IF4 card for a pressure control loop. I want to achieve tight control.

Letís leave loop update time and scan rate out of this . . . I know how to use those...
Forum: LIVE PLC Questions And Answers November 7th, 2012, 08:23 PM
Replies: 0
Views: 1,526
Posted By williamlove
Question Loop Update Time & Cascade Control Loops

I ask you answer if you know precisely what PID loop update time in a Rockwell processor is and if you are experienced with cascade loops. Thank you!

Assume a powerful ControlLogix with almost no...
Showing results 1 to 25 of 46

 
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