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Search: Posts Made By: Robb B
Forum: Practice Posting Here March 4th, 2021, 05:55 PM
Replies: 1
Views: 999
Posted By Robb B
Success! and welcome!

Success! and welcome!
Forum: LIVE PLC Questions And Answers March 2nd, 2021, 04:20 PM
Replies: 14
Views: 560
Posted By Robb B
Programming by others seems pretty clear, the...

Programming by others seems pretty clear, the functional system will be made by someone else. Providing and installing working hardware that is free from faults or hardware errors could arguably be...
Forum: LIVE PLC Questions And Answers February 16th, 2021, 06:14 PM
Replies: 3
Views: 261
Posted By Robb B
Fault history is something that was created...

Fault history is something that was created specifically by the OEM? I don't see it as a default option in FTVS ME 11.0 here. I would hazard a guess that something in that programming doesn't play...
Forum: LIVE PLC Questions And Answers February 16th, 2021, 02:48 PM
Replies: 9
Views: 598
Posted By Robb B
I agree. Ability to work offline is very...

I agree. Ability to work offline is very important.
Forum: LIVE PLC Questions And Answers February 16th, 2021, 01:54 PM
Replies: 37
Views: 1,964
Posted By Robb B
If cabinet is possible to reach over 40 Celsius,...

If cabinet is possible to reach over 40 Celsius, advise putting active cooling in. Heat is electronics' enemy.
Forum: LIVE PLC Questions And Answers February 16th, 2021, 12:22 PM
Replies: 37
Views: 1,964
Posted By Robb B
Put the controller at the opposite end of the...

Put the controller at the opposite end of the cabinet from where the majority of cables/wires will come in. Put terminal blocks in between rack and entry points, use the biggest, deepest wireduct...
Forum: LIVE PLC Questions And Answers February 12th, 2021, 02:40 PM
Replies: 22
Views: 1,302
Posted By Robb B
I think what GaryS is getting at is that the fact...

I think what GaryS is getting at is that the fact that the call for water went unanswered. Whether a pump failed or whatever, it would be better to generate an alarm if a pump was called to run, but...
Forum: LIVE PLC Questions And Answers February 12th, 2021, 01:31 PM
Replies: 139
Views: 7,350
Posted By Robb B
Not my forte... Predictive would be a...

Not my forte...

Predictive would be a feed-forward, wouldn't it? I don't think any Integral term will achieve this. You would need something to signal the next change in temperature before it...
Forum: LIVE PLC Questions And Answers February 9th, 2021, 04:54 PM
Replies: 2
Views: 232
Posted By Robb B
Thanks for the direct link, I don't know why it...

Thanks for the direct link, I don't know why it didn't come up in my searches. Wish it was a lot longer of a read though!
Forum: LIVE PLC Questions And Answers February 9th, 2021, 04:46 PM
Replies: 11
Views: 844
Posted By Robb B
There are new instructions ALMD and ALMA (Alarm...

There are new instructions ALMD and ALMA (Alarm Digital and Alarm Analog) which can be used in the PLC logic. If the connections are correct in the Factory Talk View Studio file, the HMI (Machine...
Forum: LIVE PLC Questions And Answers February 9th, 2021, 04:32 PM
Replies: 2
Views: 232
Posted By Robb B
Question Factory View Studio ME and Logix 500

Hello everyone, I'm starting a re-do of a controls system HMI using a panelview plus 7, and would like to improve the interface. I want to implement popup windows for pumps and valves, controls to...
Forum: LIVE PLC Questions And Answers February 3rd, 2021, 05:13 PM
Replies: 4
Views: 358
Posted By Robb B
Not sure if it is unrelated, but could you share...

Not sure if it is unrelated, but could you share what the faulted rungs are doing? There might be something causing the controller to put the card offline.

The faults are being reported, but...
Forum: LIVE PLC Questions And Answers February 2nd, 2021, 04:47 PM
Replies: 7
Views: 364
Posted By Robb B
Critical environment makes some decent sensors....

Critical environment makes some decent sensors. I've installed some as standalone systems, no Modbus or ethernet integration that I've done, though they claim the support is there.
...
Forum: LIVE PLC Questions And Answers February 2nd, 2021, 03:43 PM
Replies: 15
Views: 951
Posted By Robb B
I would not recommend wireless, too susceptible...

I would not recommend wireless, too susceptible to interference, noise, lost signals, etc. particularly in industrial setting. You may want to do a bit of data rate calculations, list all the data...
Forum: LIVE PLC Questions And Answers February 1st, 2021, 03:04 PM
Replies: 32
Views: 1,814
Posted By Robb B
Standard squirrel cage motors would not produce...

Standard squirrel cage motors would not produce torque without slip, though the slip percentage shouldn't change from full speed to low but it's impact will be greater. For example, if motor has 5%...
Forum: LIVE PLC Questions And Answers February 1st, 2021, 01:30 PM
Replies: 3
Views: 369
Posted By Robb B
Is there some security setting on the PLC that...

Is there some security setting on the PLC that could prevent uploading the file? I've not encountered this before, if you can connect to the PLC, you should be able to upload whatever logic is has....
Forum: LIVE PLC Questions And Answers February 1st, 2021, 12:05 PM
Replies: 2
Views: 251
Posted By Robb B
I would start by building a trending chart with...

I would start by building a trending chart with the particular points you are getting alarms on, as well as positioning. Let it run for a while and try to capture the fault. Can you initiate manual...
Forum: LIVE PLC Questions And Answers February 1st, 2021, 11:53 AM
Replies: 6
Views: 708
Posted By Robb B
I had an interesting experience the other day,...

I had an interesting experience the other day, Siemens s7 and winCC HMIs, the HMI were showing no values in analog displays, #### for example. Turns out the PLC was not in run mode. Once enabled to...
Forum: LIVE PLC Questions And Answers January 29th, 2021, 04:28 PM
Replies: 44
Views: 2,628
Posted By Robb B
Just to make things more fun, here in BC at least...

Just to make things more fun, here in BC at least not sure about other provinces, the local supply authority (BC Hydro) uses Brown as L1, and forbids the use of black wires anywhere. As far as I...
Forum: LIVE PLC Questions And Answers January 29th, 2021, 03:48 PM
Replies: 15
Views: 879
Posted By Robb B
By grounding at one end only, you determine where...

By grounding at one end only, you determine where the stray or induced energy can go. Creating two grounded points and the possible imbalance in voltage at them, will cause a current to flow. The...
Forum: LIVE PLC Questions And Answers January 29th, 2021, 03:07 PM
Replies: 15
Views: 879
Posted By Robb B
Signal wires should be shielded and the shield...

Signal wires should be shielded and the shield connected to earth at the source. This is bonding, not grounding, technically, but we all call it grounding. This is sometimes confusing, but use PLC...
Forum: LIVE PLC Questions And Answers January 29th, 2021, 02:23 PM
Replies: 16
Views: 1,409
Posted By Robb B
North of the border reporting in: I'm an...

North of the border reporting in: I'm an industrial electrician by training since 2007, the last few years I have been doing a lot of PLC and controls work. I'm not salary, my annual gross wages is...
Forum: LIVE PLC Questions And Answers January 28th, 2021, 04:46 PM
Replies: 44
Views: 2,628
Posted By Robb B
I think there's probably as many ways to wire as...

I think there's probably as many ways to wire as people to do the wiring, bring a good meter (some even autodetect AC/DC!) and a very few assumptions.

Around these parts, black and red together...
Forum: LIVE PLC Questions And Answers January 21st, 2021, 04:20 PM
Replies: 16
Views: 919
Posted By Robb B
You may have to make them into a group, select...

You may have to make them into a group, select all the images, in the menu there's an option to Group or Ungroup, select it. You should be able to apply that animation to the new Group.
Forum: LIVE PLC Questions And Answers January 21st, 2021, 12:00 PM
Replies: 26
Views: 1,725
Posted By Robb B
PLC Pie Guy, as a fellow Canaderpian, you mention...

PLC Pie Guy, as a fellow Canaderpian, you mention following the rules of control cabinet and machine building, have you found anything specific to Canada, or do you just use UL508A?
Showing results 1 to 25 of 135

 
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