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Search: Posts Made By: Steve Bailey
Forum: LIVE PLC Questions And Answers Today, 04:05 PM
Replies: 9
Views: 151
Posted By Steve Bailey
Keep a backup on the computer you normally use...

Keep a backup on the computer you normally use for programming and troubleshooting. Keep a second backup on a different computer that you always have access to. Keep a third backup on a thumb drive...
Forum: LIVE PLC Questions And Answers November 11th, 2018, 03:01 PM
Replies: 20
Views: 723
Posted By Steve Bailey
Unless you are already have a track record at the...

Unless you are already have a track record at the facility you're planning to do the work for, I don't see how you'll find much work under those conditions. You're going to have to deliver your work...
Forum: LIVE PLC Questions And Answers November 11th, 2018, 12:45 PM
Replies: 1
Views: 152
Posted By Steve Bailey
My guess is that Norcimbus was willing to pay a...

My guess is that Norcimbus was willing to pay a premium price to put their faceplate on a standard Quick panel Jr. But since their phone number is on the faceplate, have you tried calling them to...
Forum: LIVE PLC Questions And Answers November 9th, 2018, 01:19 PM
Replies: 6
Views: 318
Posted By Steve Bailey
In a permanent magnet DC motor direction of...

In a permanent magnet DC motor direction of rotation is determined by the polarity of the applied voltage. To reverse direction you need to reverse the polarity.
You will need two PLC outputs, one...
Forum: LIVE PLC Questions And Answers November 8th, 2018, 08:55 AM
Replies: 2
Views: 58
Posted By Steve Bailey
There is no single instruction in the Rx3i...

There is no single instruction in the Rx3i function set that will do it.
It will still be an iterative process, but there is a "bit position' instruction which returns the location of the first set...
Forum: LIVE PLC Questions And Answers November 8th, 2018, 08:32 AM
Replies: 28
Views: 868
Posted By Steve Bailey
No disrespect intended, but that's probably the...

No disrespect intended, but that's probably the worst advice offered in this thread!
Forum: LIVE PLC Questions And Answers November 5th, 2018, 12:52 PM
Replies: 15
Views: 566
Posted By Steve Bailey
That's a rather defensive response, but sometimes...

That's a rather defensive response, but sometimes the legitimate answer to a question is RTFM.

Read The Friendly (or some other adjective that will get censored) Manual
Forum: LIVE PLC Questions And Answers November 2nd, 2018, 01:20 PM
Replies: 33
Views: 2,997
Posted By Steve Bailey
BachPhi, Your claim that you have no...

BachPhi,

Your claim that you have no affiliation with OI builder is undermined by your continued comparison of it to Advanced HMI. when you say your favorite brand is good, that can be interpreted...
Forum: LIVE PLC Questions And Answers October 31st, 2018, 10:35 AM
Replies: 4
Views: 167
Posted By Steve Bailey
Sure. As long as the integer division truncates...

Sure. As long as the integer division truncates the result, division by four is the same as shifting the bit pattern right by two places.
I don't have an Rx3i to try it on. It works for a 90-30. The...
Forum: LIVE PLC Questions And Answers October 31st, 2018, 08:34 AM
Replies: 7
Views: 223
Posted By Steve Bailey
Each pulse represents a fixed amount of gas. To...

Each pulse represents a fixed amount of gas. To calculate the flow rate, measure the time between pulses as accurately as possible and divide the amount by that time to obtain the flow rate....
Forum: LIVE PLC Questions And Answers October 30th, 2018, 08:01 PM
Replies: 4
Views: 167
Posted By Steve Bailey
Assuming the "first two digits" are the two least...

Assuming the "first two digits" are the two least significant digits, the simplest way is to just divide the integer by four. I'm pretty sure the integer divide truncates the result.
If you need to...
Forum: LIVE PLC Questions And Answers October 30th, 2018, 10:29 AM
Replies: 18
Views: 616
Posted By Steve Bailey
If the VFD faults every time the line stops and...

If the VFD faults every time the line stops and you have to reset the fault before you can restart, the first thing you need to do is check the fault code before you reset. Armed with the fault code...
Forum: LIVE PLC Questions And Answers October 30th, 2018, 10:23 AM
Replies: 18
Views: 616
Posted By Steve Bailey
An inverter produces an AC waveform from a DC...

An inverter produces an AC waveform from a DC source. Since an inverter is at the heart of a VFD, many manufacturers use the terms interchangeably. A VFD starts with an AC input, rectifies it to DC...
Forum: LIVE PLC Questions And Answers October 30th, 2018, 09:49 AM
Replies: 18
Views: 616
Posted By Steve Bailey
Please tell us your interpretation of the...

Please tell us your interpretation of the difference between an inverter and a variable frequency drive.
Forum: LIVE PLC Questions And Answers October 29th, 2018, 02:18 PM
Replies: 38
Views: 1,001
Posted By Steve Bailey
The safety procedures in your facility are...

The safety procedures in your facility are inadequate. The incident you cited is at best a "near miss", but realistically an injury, and quite possibly should have been reported to OSHA. If it had...
Forum: LIVE PLC Questions And Answers October 29th, 2018, 01:22 PM
Replies: 38
Views: 1,001
Posted By Steve Bailey
Since I have never seen your machine, I can't...

Since I have never seen your machine, I can't begin to advise you on what might be wrong with either the way you're setting it up or the way it's programmed. In a provious post I defended the...
Forum: LIVE PLC Questions And Answers October 29th, 2018, 01:12 PM
Replies: 38
Views: 1,001
Posted By Steve Bailey
X, Y, D and M represent addresses within the...

X, Y, D and M represent addresses within the PLC's memory. Var1 is an alternate way of identifying variables within the program. In your example the name "Var1" probably isn't any more helpful than...
Forum: LIVE PLC Questions And Answers October 29th, 2018, 12:51 PM
Replies: 38
Views: 1,001
Posted By Steve Bailey
I would respectfully say that on a line that has...

I would respectfully say that on a line that has been in place for eleven years it's a bit unfair to blame things on the program. Especially when you're citing problems like "run off the track" and...
Forum: LIVE PLC Questions And Answers October 29th, 2018, 11:09 AM
Replies: 38
Views: 1,001
Posted By Steve Bailey
What is the situation in the facility where you...

What is the situation in the facility where you work? If there is someone there already familiar with the PLCs in the plant, you need to seek that person out and let him/her be your mentor.
If you...
Forum: LIVE PLC Questions And Answers October 26th, 2018, 07:44 PM
Replies: 17
Views: 483
Posted By Steve Bailey
If an OTL instruction works and an OTE...

If an OTL instruction works and an OTE instruction does not, then maybe you're not leaving it on long enough when using the OTE instruction. Stick with the OTL instruction and use the acknowledgement...
Forum: LIVE PLC Questions And Answers October 26th, 2018, 06:30 PM
Replies: 17
Views: 483
Posted By Steve Bailey
That sounds like your logic controlling the...

That sounds like your logic controlling the trigger command is in a subroutine that isn't being called. Either that or there is logic controlling the trigger command in more than one place in the...
Forum: LIVE PLC Questions And Answers October 26th, 2018, 03:09 PM
Replies: 17
Views: 483
Posted By Steve Bailey
I don't have any experience connecting a Cognex...

I don't have any experience connecting a Cognex Dataman scanner to a Control Logix, but I have done it via Modbus TCP. I see that I kept bit zero (trigger enable) of the control word to the Dataman...
Forum: LIVE PLC Questions And Answers October 26th, 2018, 07:23 AM
Replies: 18
Views: 1,461
Posted By Steve Bailey
A reference to another thread in which one member...

A reference to another thread in which one member showed himself to be eminently worthy of being added to anyone's ignore list.
Forum: LIVE PLC Questions And Answers October 24th, 2018, 01:41 PM
Replies: 12
Views: 17,442
Posted By Steve Bailey
Zombie thread alert. First-time poster...

Zombie thread alert. First-time poster resurrecting a nine year old thread. No activity from the OP in more than two years.
Forum: LIVE PLC Questions And Answers October 22nd, 2018, 07:13 PM
Replies: 5
Views: 194
Posted By Steve Bailey
As far as I know, the BEM321 doesn't care what...

As far as I know, the BEM321 doesn't care what modules are present in the drop. It only expects to see the number of input and output points defined in the configuration. Does the first input from...
Showing results 1 to 25 of 500

 
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