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Showing results 1 to 25 of 277
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Search: Posts Made By: rupej
Forum: LIVE PLC Questions And Answers Yesterday, 08:33 PM
Replies: 3
Views: 153
Posted By rupej
Setting the PID forward or reverse acting (there...

Setting the PID forward or reverse acting (there may be other terms like "inverted" or something) is what sets the direction of the "action" or the PID output. Otherwise, the controller doesn't know...
Forum: LIVE PLC Questions And Answers February 23rd, 2018, 02:54 PM
Replies: 3
Views: 153
Posted By rupej
Can you list all the parameters you changed? Have...

Can you list all the parameters you changed? Have you tried setting the PID to reverse acting?
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 09:44 PM
Replies: 21
Views: 529
Posted By rupej
Maybe it's possible, but we'll never know because...

Maybe it's possible, but we'll never know because we can't find a gauge that reads below -14.5psi...
Forum: LIVE PLC Questions And Answers February 22nd, 2018, 09:39 PM
Replies: 10
Views: 269
Posted By rupej
RTD with 4-20mA transmitter. Check ifm.com for...

RTD with 4-20mA transmitter. Check ifm.com for good affordable options.
Forum: LIVE PLC Questions And Answers February 21st, 2018, 07:19 PM
Replies: 6
Views: 139
Posted By rupej
Technically, yes that would be possible. But it...

Technically, yes that would be possible. But it would be so complicated that you would be better off just copying the graphic and add a color change animation.
Forum: LIVE PLC Questions And Answers February 21st, 2018, 06:57 PM
Replies: 6
Views: 139
Posted By rupej
Do you mean, can you use certain parts of the...

Do you mean, can you use certain parts of the graphics and roll your own connections for them behind the scenes? I suppose so, but it would be a lot of work.

Otherwise, no, the graphics require...
Forum: LIVE PLC Questions And Answers February 16th, 2018, 09:21 PM
Replies: 20
Views: 725
Posted By rupej
That basic design is pretty typical. Contactor...

That basic design is pretty typical. Contactor provides positive shutoff, and SSR is used to modulate heat. Contactors wear out if cycled under load too often, SSRs do not. SSRs can fail, but that is...
Forum: LIVE PLC Questions And Answers February 14th, 2018, 09:19 PM
Replies: 9
Views: 328
Posted By rupej
We have technicians that go out and provide...

We have technicians that go out and provide calibration services. For flow meters, they typically fit their calibrated meter in line with the customer's and then pass a certain volume through both....
Forum: LIVE PLC Questions And Answers February 14th, 2018, 07:21 PM
Replies: 13
Views: 3,596
Posted By rupej
Yeah, it's built into newer versions. Not sure...

Yeah, it's built into newer versions. Not sure when they started with it. Might be easier just to switch to v9.0 if feasible?
Forum: LIVE PLC Questions And Answers February 12th, 2018, 07:34 PM
Replies: 17
Views: 614
Posted By rupej
If you've got the experience, the actual type of...

If you've got the experience, the actual type of degree usually matters very little. An electrical engineering (or any engineering) degree might be slightly preferred, but I think I would go with...
Forum: LIVE PLC Questions And Answers February 9th, 2018, 06:35 PM
Replies: 13
Views: 585
Posted By rupej
Yes it could. What's the part number for your...

Yes it could. What's the part number for your output card, and how is it configured? Post a screenshot of the setup screen and your SCP
Forum: LIVE PLC Questions And Answers February 9th, 2018, 06:31 PM
Replies: 6
Views: 234
Posted By rupej
Oh wow, I didn't realize that was possible. In...

Oh wow, I didn't realize that was possible. In that mode, could the SR scan continuously, as fast as possible, and keep an output held as long as the last scan was a good code, and then turn the...
Forum: LIVE PLC Questions And Answers February 9th, 2018, 02:30 PM
Replies: 13
Views: 585
Posted By rupej
You are just wanting to send a constant signal to...

You are just wanting to send a constant signal to the valve to hold it in a set position, or do you want to control the valve based on an input, such as flow rate?

If you just want to set the...
Forum: LIVE PLC Questions And Answers February 9th, 2018, 01:30 PM
Replies: 6
Views: 234
Posted By rupej
Keyence SR-1000 on a MicroLogix vs CompactLogix?

I have a customer that wants to install a barcode scanner to read labels coming out of a label machine just before they are put on bottles going down a conveyor.

The idea is to have the operator...
Forum: LIVE PLC Questions And Answers February 8th, 2018, 07:52 PM
Replies: 12
Views: 808
Posted By rupej
Lol, thanks for wasting 20 minutes of my life. It...

Lol, thanks for wasting 20 minutes of my life. It was haliarious. Unfortunately, I think I actually agree with the a$$hat :shutit:
Forum: LIVE PLC Questions And Answers February 7th, 2018, 07:01 PM
Replies: 5
Views: 257
Posted By rupej
Does it need to be NEMA rated for UL or code...

Does it need to be NEMA rated for UL or code reasons, or are you just trying to make sure that no water enters the enclosure?

If the latter, going through the bottom of the enclosure is pretty...
Forum: LIVE PLC Questions And Answers February 7th, 2018, 10:10 AM
Replies: 37
Views: 1,608
Posted By rupej
I guess instead of solving the world's problems,...

I guess instead of solving the world's problems, maybe they just want to say "Screw it" and hope for a clean start on another planet. :whistle:
Forum: LIVE PLC Questions And Answers February 6th, 2018, 07:56 PM
Replies: 8
Views: 220
Posted By rupej
Interesting. I've never used the "Value...

Interesting. I've never used the "Value Connection" option but unless I'm misinterpreting with the OP is asking, I'm certain that you can use the PLC to latch/unlatch the bit or write to the integer...
Forum: LIVE PLC Questions And Answers February 6th, 2018, 07:11 PM
Replies: 8
Views: 220
Posted By rupej
Isn't that how it works by default when "Next...

Isn't that how it works by default when "Next state determined by: Previous Value" is set?
Forum: LIVE PLC Questions And Answers February 5th, 2018, 06:56 PM
Replies: 8
Views: 223
Posted By rupej
Check post #3 of this thread for an "elegant" way...

Check post #3 of this thread for an "elegant" way to do it in FB.
http://www.plctalk.net/qanda/showthread.php?t=65123

That said, if it were me, I'd use OkiePC's suggested method.
Forum: LIVE PLC Questions And Answers February 3rd, 2018, 10:26 AM
Replies: 2
Views: 205
Posted By rupej
That's been my assumption, but I've never tested...

That's been my assumption, but I've never tested it.
Forum: LIVE PLC Questions And Answers February 2nd, 2018, 09:29 PM
Replies: 11
Views: 424
Posted By rupej
I seem to recall there being a "Sine Wave"...

I seem to recall there being a "Sine Wave" function or similar that essentially ramps a value in the form of a sine wave.

I've never messed with it, but I'm assuming you can change the frequency...
Forum: LIVE PLC Questions And Answers February 2nd, 2018, 09:22 PM
Replies: 7
Views: 401
Posted By rupej
You need to check if it is being commanded to...

You need to check if it is being commanded to make these changing frequencies, or if it is a result of something else.

What model PowerFlex? Most of them have a parameter called "Commanded...
Forum: LIVE PLC Questions And Answers February 2nd, 2018, 09:03 PM
Replies: 9
Views: 464
Posted By rupej
Ah, thanks, that answers my question. I...

Ah, thanks, that answers my question. I appreciate you taking the time to write all of that out.

The only thing that surprises me is that you said a drive cannot produce a higher RMS output than...
Forum: LIVE PLC Questions And Answers February 2nd, 2018, 06:01 PM
Replies: 9
Views: 464
Posted By rupej
I'm not talking about adding output voltage...

I'm not talking about adding output voltage without raising the input voltage. Let me ask a different way:

If you have a 230V input to the drive, and the drive is connected to a 230V motor, the...
Showing results 1 to 25 of 277

 
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