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Search: Posts Made By: AustralIan
Forum: LIVE PLC Questions And Answers June 16th, 2018, 05:34 PM
Replies: 7
Views: 254
Posted By AustralIan
Why not a motor overload and a contactor?

Why not a motor overload and a contactor?
Forum: LIVE PLC Questions And Answers June 12th, 2018, 04:06 PM
Replies: 29
Views: 943
Posted By AustralIan
I disagree, micro820 uses ieee 64 bit floats,...

I disagree, micro820 uses ieee 64 bit floats, where excel uses a modified version. I would describe the results as similar but not the same.
Forum: LIVE PLC Questions And Answers June 12th, 2018, 07:36 AM
Replies: 29
Views: 943
Posted By AustralIan
32 bit floats are so last millennium. On the...

32 bit floats are so last millennium.

On the topic of 64 bit floats.. excel uses a modified ieee 64 bit float which has the same precision regardless of number, whereas 64 bit reals conforming to...
Forum: LIVE PLC Questions And Answers June 11th, 2018, 05:16 AM
Replies: 16
Views: 752
Posted By AustralIan
Do a risk assessment to determine how reliable...

Do a risk assessment to determine how reliable your safety circuit needs to be.

Document your risk assessment.

Document your analysis of your controls design and how it meets your required...
Forum: LIVE PLC Questions And Answers June 11th, 2018, 05:03 AM
Replies: 30
Views: 1,542
Posted By AustralIan
If you like AB, go with the Micro800s.

If you like AB, go with the Micro800s.
Forum: LIVE PLC Questions And Answers June 1st, 2018, 01:58 PM
Replies: 34
Views: 1,107
Posted By AustralIan
Random number generator, and hope the assessor...

Random number generator, and hope the assessor doesn't actually know Morse code?
Forum: LIVE PLC Questions And Answers May 31st, 2018, 06:01 AM
Replies: 9
Views: 264
Posted By AustralIan
Do you have a 50Hz notch filter on your input...

Do you have a 50Hz notch filter on your input card, and would 50Hz be roughly 80% of 60Hz?

OR,

are you sure the speed is correct when you go over 80%?
Forum: LIVE PLC Questions And Answers May 30th, 2018, 05:05 PM
Replies: 16
Views: 601
Posted By AustralIan
Is it as good as it looks to be? It depends how...

Is it as good as it looks to be?
It depends how you are looking at it.

Is it something you would trust to run a plant on?
Yes. I think Tesla and Amazon do [citation needed], although Musk has...
Forum: LIVE PLC Questions And Answers May 30th, 2018, 03:53 PM
Replies: 10
Views: 349
Posted By AustralIan
More PLCs for sure. Graduates have to learn the...

More PLCs for sure.
Graduates have to learn the "don't put code in that faults the production controller" lesson the hard way, but having 25% of production staff staring at them is probably...
Forum: LIVE PLC Questions And Answers May 30th, 2018, 02:13 PM
Replies: 13
Views: 384
Posted By AustralIan
If you put it across the two terminals of the...

If you put it across the two terminals of the 2wire transmitter, you will get 24V/(1.8+200 ohms) ~ 120mA.

If you put it between the return and the 0V* of your system, you should get the same...
Forum: LIVE PLC Questions And Answers May 29th, 2018, 11:22 AM
Replies: 13
Views: 631
Posted By AustralIan
Please send me part numbers of soft starters 10x...

Please send me part numbers of soft starters 10x cheaper than a VFD.

A VFD can be setup to be more efficient than a soft start+DOL even at line frequency, when the load is less than the nominal...
Forum: LIVE PLC Questions And Answers May 24th, 2018, 02:35 AM
Replies: 4
Views: 131
Posted By AustralIan
Stick it in a 90 bend and have it as long as you...

Stick it in a 90 bend and have it as long as you like, and also facing the direction of flow?

OR

IFM TA2105? Your fluid will fall out if you replace the sensor though.
Forum: LIVE PLC Questions And Answers May 23rd, 2018, 07:35 AM
Replies: 5
Views: 288
Posted By AustralIan
I am not to sure what you mean by single acting...

I am not to sure what you mean by single acting solenoids.
Are the single acting solenoids each driving a 5 port, 2 position, spring return valve?
If so, then yes it is possible.

Ideally they...
Forum: LIVE PLC Questions And Answers May 23rd, 2018, 01:09 AM
Replies: 16
Views: 506
Posted By AustralIan
5 potato, 6 potato, 7 potato, more!

5 potato, 6 potato, 7 potato, more!
Forum: LIVE PLC Questions And Answers May 22nd, 2018, 05:28 PM
Replies: 16
Views: 506
Posted By AustralIan
Is your customer the type to keep photo eyes...

Is your customer the type to keep photo eyes clean? Is a potato conveyor dusty?
Maybe a low inertia flap on a spring and a limit switch?
Forum: LIVE PLC Questions And Answers May 22nd, 2018, 02:57 AM
Replies: 8
Views: 331
Posted By AustralIan
527 has PLe STO hardwired and networked built in,...

527 has PLe STO hardwired and networked built in, 525 only has PLd.
525 has modbus.
527 has built in dual ethernet ports.
527 cannot do permanent magnet motors, but 525 can.

753 is probably a...
Forum: LIVE PLC Questions And Answers May 21st, 2018, 05:35 PM
Replies: 5
Views: 426
Posted By AustralIan
Are you controlling the element temp, vac temp or...

Are you controlling the element temp, vac temp or blower air temp?
Normally this would be a cascade loop. Adjust element temp to get air temp.

What technique did you use to tune manually?

Do...
Forum: LIVE PLC Questions And Answers May 21st, 2018, 11:31 AM
Replies: 24
Views: 1,015
Posted By AustralIan
IEC 61131-3 Edition 3 8.2.7 "Order of network...

IEC 61131-3 Edition 3 8.2.7 "Order of network evaluation" Under 8.2 "Ladder Diagram" might tell us the correct order to execute branched output coils.

I do not have access to this standard.
Forum: LIVE PLC Questions And Answers May 21st, 2018, 07:38 AM
Replies: 21
Views: 494
Posted By AustralIan
Use a real PLC that has 64bit floating point...

Use a real PLC that has 64bit floating point arithmetic.
Forum: LIVE PLC Questions And Answers May 21st, 2018, 06:08 AM
Replies: 21
Views: 494
Posted By AustralIan
Weight = ∫ Flow dt

Weight = ∫ Flow dt
Forum: LIVE PLC Questions And Answers May 20th, 2018, 06:17 PM
Replies: 31
Views: 1,542
Posted By AustralIan
Wago have power measurement terminals as io.

Wago have power measurement terminals as io.
Forum: LIVE PLC Questions And Answers May 19th, 2018, 11:29 AM
Replies: 13
Views: 429
Posted By AustralIan
I think if you wire: 12V into common (C1) ...

I think if you wire:

12V into common (C1)
Open collector into input 1

You will find the unit can work directly with your card.
Forum: LIVE PLC Questions And Answers May 18th, 2018, 06:41 PM
Replies: 13
Views: 429
Posted By AustralIan
P108nd3 is both sink and source. Any reason you...

P108nd3 is both sink and source. Any reason you can't wire it straight to the card?
Forum: LIVE PLC Questions And Answers May 18th, 2018, 05:58 PM
Replies: 13
Views: 429
Posted By AustralIan
http://catalog.weidmueller.com/procat/Group.jsp;js...

http://catalog.weidmueller.com/procat/Group.jsp;jsessionid=E4FA14EFA17F37A60F81282397EEE094?groupId=("group6772202724221")&page=Group
Scroll down and you will find some with resistors in there....
Forum: LIVE PLC Questions And Answers May 18th, 2018, 11:15 AM
Replies: 25
Views: 1,322
Posted By AustralIan
I never thought of using a blank rung at the end...

I never thought of using a blank rung at the end to add detailed comments.
I will give it a go.
Showing results 1 to 25 of 500

 
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