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Search: Posts Made By: Mas01
Forum: LIVE PLC Questions And Answers May 20th, 2022, 10:27 AM
Replies: 14
Views: 420
Posted By Mas01
Interesting, thanks. I suppose this "belt and...

Interesting, thanks. I suppose this "belt and braces" approach is a good one.
Forum: LIVE PLC Questions And Answers May 20th, 2022, 08:06 AM
Replies: 14
Views: 420
Posted By Mas01
My understanding is that the manual override is a...

My understanding is that the manual override is a temporary thing as we're still in the development stage of the project. I guess it makes the operator more comfortable having this option, even...
Forum: LIVE PLC Questions And Answers May 20th, 2022, 07:50 AM
Replies: 14
Views: 420
Posted By Mas01
As pragmatic as ever, great idea. Thanks

As pragmatic as ever, great idea. Thanks
Forum: LIVE PLC Questions And Answers May 20th, 2022, 07:31 AM
Replies: 14
Views: 420
Posted By Mas01
Update... That works fine, thanks. I just...

Update... That works fine, thanks.

I just realised that the operator could set the low setpoint to a value greater than the high setpoint. So I need to add a further check in the high setpoint...
Forum: LIVE PLC Questions And Answers May 20th, 2022, 06:37 AM
Replies: 14
Views: 420
Posted By Mas01
Brilliant, thanks chaps. I will give it a try...

Brilliant, thanks chaps.
I will give it a try and report back.
Forum: LIVE PLC Questions And Answers May 20th, 2022, 03:55 AM
Replies: 14
Views: 420
Posted By Mas01
GX developer/GT designer 3: how do I limit a setpoint entered value?

We have a water scavenge pump. The pump is switched on/off by the operator entering high & low setpoints. Operator has brought to my attention that a low setpoint of zero could be entered (causing...
Forum: LIVE PLC Questions And Answers May 17th, 2022, 03:36 AM
Replies: 34
Views: 2,828
Posted By Mas01
Interesting - might end up doing something like...

Interesting - might end up doing something like this. At the moment we're taking a cautious approach and emptying out the last remnants of water with a small portable bilge pump, the sort you might...
Forum: LIVE PLC Questions And Answers May 16th, 2022, 03:43 PM
Replies: 34
Views: 2,828
Posted By Mas01
I prefer the top rung idea, to be honest, but...

I prefer the top rung idea, to be honest, but operator wants a manual/auto selector. Also I like your idea of a manual/auto toggle in which the associated text changes from "auto" to "manual" because...
Forum: LIVE PLC Questions And Answers May 16th, 2022, 03:40 PM
Replies: 34
Views: 2,828
Posted By Mas01
@drbitboy...not steam turbine, it's aircraft fan...

@drbitboy...not steam turbine, it's aircraft fan blades. We are fatiguing blades to test their design robustness etc.
Forum: LIVE PLC Questions And Answers May 16th, 2022, 11:46 AM
Replies: 34
Views: 2,828
Posted By Mas01
Apologies, I was unable to do any code updates...

Apologies, I was unable to do any code updates today because the rig was running all the time. I need some rig "down Time" to allow me to do the update... I've already made the mistake once of...
Forum: LIVE PLC Questions And Answers May 16th, 2022, 04:25 AM
Replies: 34
Views: 2,828
Posted By Mas01
Just to confirm: in the lower code, M3 is the...

Just to confirm: in the lower code, M3 is the man/auto toggle button (possibly a lamp on the HMI). M0 is the request to manually start the pump and M1 is the request to manually stop the pump, is...
Forum: LIVE PLC Questions And Answers May 15th, 2022, 10:44 AM
Replies: 34
Views: 2,828
Posted By Mas01
To answer some of your questions @parky...we have...

To answer some of your questions @parky...we have a closed container into which water is pumped. This pumped water enters a series of spray bars which spray water onto rotating blades. As the water...
Forum: LIVE PLC Questions And Answers May 15th, 2022, 10:34 AM
Replies: 34
Views: 2,828
Posted By Mas01
Many thanks drbitboy & parky for the detailed...

Many thanks drbitboy & parky for the detailed help, really appreciated. Sometimes I feel out of my depth and other times I have half an idea on how to do something.
@parky, I think your suggestion...
Forum: LIVE PLC Questions And Answers May 14th, 2022, 07:34 AM
Replies: 34
Views: 2,828
Posted By Mas01
Hi again. I'm returning to this thread because...

Hi again.
I'm returning to this thread because the operator has asked me to implement a change.
I understand the code in the original post and the pump is behaving exactly as expected, ie the pump...
Forum: LIVE PLC Questions And Answers April 26th, 2022, 05:21 AM
Replies: 5
Views: 355
Posted By Mas01
Useful stuff, this. I'll keep that in the back...

Useful stuff, this. I'll keep that in the back pocket for future use. Thanks
Forum: LIVE PLC Questions And Answers April 26th, 2022, 03:40 AM
Replies: 5
Views: 355
Posted By Mas01
Brilliant, thanks for this. It works a treat. ...

Brilliant, thanks for this. It works a treat.
Even though I've got the GT designer 3 manual I couldn't find what I wanted, partly due to the English not being clear. I was getting frustrated just...
Forum: LIVE PLC Questions And Answers April 25th, 2022, 02:12 PM
Replies: 5
Views: 355
Posted By Mas01
GT designer3: conditional text display...

In GT designer 3, the rig operator wants me to display a text string on the screen when a bit goes TRUE, and make it disappear when the bit goes FALSE. This is for a water level which is <20mm which...
Forum: LIVE PLC Questions And Answers April 20th, 2022, 04:14 PM
Replies: 15
Views: 953
Posted By Mas01
Thanks for all the comments/suggestions. ...

Thanks for all the comments/suggestions.
Contrary to what I was proposing to do by artificially lowering the setpoints, I think I will go with drbitboy/parky suggestions of adding on the 20mm to the...
Forum: LIVE PLC Questions And Answers April 20th, 2022, 01:33 PM
Replies: 15
Views: 953
Posted By Mas01
For clarification, this is a different tank to...

For clarification, this is a different tank to the tank I have mentioned in various previous threads (although it's part of the same water system) - sorry for any confusion. The tank in question in...
Forum: LIVE PLC Questions And Answers April 20th, 2022, 09:14 AM
Replies: 15
Views: 953
Posted By Mas01
The water levels for turning the pump on/off does...

The water levels for turning the pump on/off does matter.
The ON level is 800mm, the OFF level is 250mm. i.e. nowhere near empty, but the aforementioned levels are important and need to be accurate...
Forum: LIVE PLC Questions And Answers April 20th, 2022, 04:18 AM
Replies: 15
Views: 953
Posted By Mas01
Thanks for the replies, much appreciated. The...

Thanks for the replies, much appreciated.
The water level is used for switching a pump on/off. 20mm depth is not a significant level for pump control, but I think a pragmatic solution would be to...
Forum: LIVE PLC Questions And Answers April 20th, 2022, 03:36 AM
Replies: 15
Views: 953
Posted By Mas01
PLC under-reading water level by 20mm...

We've got a submersible water level sensor in our tank. We drained it, but when there was still a bit of water in the tank (about 20mm measured with a ruler), the PLC was reading zero, as though the...
Forum: LIVE PLC Questions And Answers April 11th, 2022, 10:59 AM
Replies: 50
Views: 4,437
Posted By Mas01
Done the code updates and so far so good. ...

Done the code updates and so far so good.
Although I've not tried it on the pump yet, I've just been doing some dry runs (pardon the pun) with the pump isolated. The pump coil Y2D4 is...
Forum: LIVE PLC Questions And Answers April 10th, 2022, 05:01 PM
Replies: 50
Views: 4,437
Posted By Mas01
Interesting that you caught goldfish! I've never...

Interesting that you caught goldfish! I've never caught one. My fishing these days is mainly pole fishing on the Grand Union Canal in South Leicester. I've caught some decent size bream, roach and...
Forum: LIVE PLC Questions And Answers April 10th, 2022, 02:12 PM
Replies: 50
Views: 4,437
Posted By Mas01
Thanks for the suggested use of the analogue...

Thanks for the suggested use of the analogue sensor, very helpful.
Yes, there is an overflow system in place in the form of large plastic containers. We did at one point consider overflowing into...
Showing results 1 to 25 of 500

 
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