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Search: Posts Made By: ASF
Forum: LIVE PLC Questions And Answers Yesterday, 11:19 PM
Replies: 3
Views: 124
Posted By ASF
I'm not a TIA Portal expert by any stretch, but a...

I'm not a TIA Portal expert by any stretch, but a hazy memory somewhere in the recesses of my brain is gesturing suggestively at the "Block Move" instruction (BLK_MOVE, maybe?). If it's not quite...
Forum: LIVE PLC Questions And Answers Yesterday, 11:12 PM
Replies: 4
Views: 75
Posted By ASF
I do the same thing - my motor AOI's have a...

I do the same thing - my motor AOI's have a "ReverseEnable" tag, which (a) allows the motor to be run in reverse, and (b) hides the controls for it if the tag is not set to 1.


There's probably a...
Forum: LIVE PLC Questions And Answers Yesterday, 11:08 PM
Replies: 18
Views: 675
Posted By ASF
That unfortunately is not an option - under...

That unfortunately is not an option - under certain process conditions we have to operate on full outside air with no recirculation, to avoid a build up of gas in the chamber. So we need to be able...
Forum: LIVE PLC Questions And Answers Yesterday, 06:07 PM
Replies: 18
Views: 675
Posted By ASF
That makes sense. The chamber will be very well...

That makes sense. The chamber will be very well sealed - there are access doors for loading product in and out, but they are all monitored, and when any door is open I'll basically put all the loops...
Forum: LIVE PLC Questions And Answers September 16th, 2018, 06:25 PM
Replies: 18
Views: 675
Posted By ASF
Thanks George. All my dampers have analog...

Thanks George. All my dampers have analog position feedback, and are spring return to either open or closed as the application demands. So if a damper fails, (a) I'll know about it, and (b) it'll...
Forum: LIVE PLC Questions And Answers September 16th, 2018, 05:48 PM
Replies: 7
Views: 340
Posted By ASF
I run RSLogix 5 and 500 on a Windows 7 VM without...

I run RSLogix 5 and 500 on a Windows 7 VM without problems, talking to several SLC's and PLC-5's. All the SLC5/04 (and earlier) and PLC5's in the picture already have an interface to the plant...
Forum: LIVE PLC Questions And Answers September 14th, 2018, 12:18 AM
Replies: 18
Views: 675
Posted By ASF
Thanks Seth. It's a closed loop so at yes, the...

Thanks Seth. It's a closed loop so at yes, the return fans will need to move more air than the supply fans to achieve/maintain a negative pressure.

Good point too about the fans working best near...
Forum: LIVE PLC Questions And Answers September 13th, 2018, 11:01 PM
Replies: 18
Views: 675
Posted By ASF
Supply Air Fan:...

Supply Air Fan: http://i67.tinypic.com/2612i42.png


Return Air Fan: http://i65.tinypic.com/1178utu.png
Forum: LIVE PLC Questions And Answers September 13th, 2018, 10:59 PM
Replies: 18
Views: 675
Posted By ASF
I have the fan documentation which has a graph on...

I have the fan documentation which has a graph on it, I'll attach it separately below.



There is an analog pressure sensor in the chamber, but no others (except for DP switches on fans to...
Forum: LIVE PLC Questions And Answers September 13th, 2018, 09:54 PM
Replies: 18
Views: 675
Posted By ASF
Image doesn't look to be attaching. Try this:...

Image doesn't look to be attaching. Try this: http://i64.tinypic.com/33xirls.jpg
Forum: LIVE PLC Questions And Answers September 13th, 2018, 09:52 PM
Replies: 18
Views: 675
Posted By ASF
Sanity CHeck - Process Control

Hi all,


I have a process with multiple required outcomes, with different devices controlling different process variables, but with each of them affecting the other. Just looking for a sanity...
Forum: LIVE PLC Questions And Answers September 9th, 2018, 05:44 PM
Replies: 6
Views: 217
Posted By ASF
Where is MAESTRO.ActualPosition getting it's...

Where is MAESTRO.ActualPosition getting it's value?


When you monitor the PLC code online, the value you will see in MAESTRO.ActualPosition will, in general, be it's value at the end of the scan....
Forum: LIVE PLC Questions And Answers September 5th, 2018, 06:28 PM
Replies: 12
Views: 1,572
Posted By ASF
Obviously, I do that as well. But the amount of...

Obviously, I do that as well. But the amount of phone calls I've had that go something like this:


Operator: The motor won't run!
Me: are there any alarms on the SCADA that look like they might...
Forum: LIVE PLC Questions And Answers September 5th, 2018, 06:19 PM
Replies: 1
Views: 149
Posted By ASF
I have the same issue, intermittently. I have an...

I have the same issue, intermittently. I have an FTView SE application where all clients have a status bar docked to the top, a navigation bar docked to the bottom, and the main displays appear in...
Forum: LIVE PLC Questions And Answers September 3rd, 2018, 04:43 PM
Replies: 12
Views: 1,572
Posted By ASF
I'm not sure about that specific question, but to...

I'm not sure about that specific question, but to me it's more a question of good practice and ease of troubleshooting. If you're looking at the logic to see why your drive won't start, it's a lot...
Forum: LIVE PLC Questions And Answers August 29th, 2018, 05:29 PM
Replies: 25
Views: 869
Posted By ASF
I haven't had experience running VM's off any...

I haven't had experience running VM's off any external disks, but a few weeks back I was helping a friend out by extracting around 80GB of music of an old iPod classic (still had the click wheel). It...
Forum: LIVE PLC Questions And Answers August 29th, 2018, 05:23 PM
Replies: 5
Views: 417
Posted By ASF
Yeah, that's true - but I was talking more about...

Yeah, that's true - but I was talking more about your first sentence suggesting you don't have to use parameter files. What you describe still uses parameter files, correct? Or am I misunderstanding...
Forum: LIVE PLC Questions And Answers August 29th, 2018, 12:04 AM
Replies: 5
Views: 417
Posted By ASF
That only applies to FTView SE. If the OP is...

That only applies to FTView SE. If the OP is using SE, then yes, just specify the tags directly as you open the display, using the /t flag. Hopefully the analog variables you need to display are...
Forum: LIVE PLC Questions And Answers August 26th, 2018, 05:24 PM
Replies: 12
Views: 532
Posted By ASF
I've used the Schneider XB5R with good results....

I've used the Schneider XB5R with good results. Really impressed with the range, and the robustness, and the fact that it doesn't even need a battery! They do make an ergonomic enclosure that's...
Forum: LIVE PLC Questions And Answers August 23rd, 2018, 05:43 PM
Replies: 5
Views: 225
Posted By ASF
You could do it either in the PLC or in the HMI....

You could do it either in the PLC or in the HMI. Since you're using Logix 500, I'd be strongly leaning toward doing it in the HMI, simply because storing all that data in the SLC-type data tables is...
Forum: LIVE PLC Questions And Answers August 20th, 2018, 05:31 PM
Replies: 4
Views: 417
Posted By ASF
I did hear a rumour that the latest version of...

I did hear a rumour that the latest version of FTView included full audit capability i.e. logging each and every action if that's what you wanted. I've not followed it up or tried it out, but...
Forum: LIVE PLC Questions And Answers August 20th, 2018, 05:28 PM
Replies: 10
Views: 898
Posted By ASF
Not that I've got much of a strong opinion either...

Not that I've got much of a strong opinion either way, but we already have that problem with regular cars. Fuel, oil, coolant...all various levels of toxic and hazardous
Forum: LIVE PLC Questions And Answers August 19th, 2018, 05:27 PM
Replies: 10
Views: 355
Posted By ASF
Ah, yes, RA version numbering. I think the...

Ah, yes, RA version numbering. I think the indubitable Ken Roach said it best in this post (http://www.plctalk.net/qanda/showpost.php?p=639492&postcount=3) a few years ago:




So, if I turn my...
Forum: LIVE PLC Questions And Answers August 16th, 2018, 05:31 PM
Replies: 13
Views: 447
Posted By ASF
Ah, good old AWG. Because why use an actual...

Ah, good old AWG. Because why use an actual measurement to describe the size of your cable when you can use a totally unrelated number instead? :D
Forum: LIVE PLC Questions And Answers August 15th, 2018, 08:40 PM
Replies: 10
Views: 345
Posted By ASF
It's a little more complex than just a fan...

It's a little more complex than just a fan circulating through a duct. There are multiple supply and return air fans, motorised dampers, various routes through heat exchangers/heating elements, and...
Showing results 1 to 25 of 500

 
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