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Search: Posts Made By: ndzied1
Forum: LIVE PLC Questions And Answers July 3rd, 2018, 11:50 AM
Replies: 13
Views: 494
Posted By ndzied1
I have a way I developed in CoDeSys in Structured...

I have a way I developed in CoDeSys in Structured Text. Maybe you can convert it to something you can use.

Here's a video showing it in action:...
Forum: LIVE PLC Questions And Answers June 28th, 2018, 05:31 PM
Replies: 15
Views: 647
Posted By ndzied1
The order that things are happening is important....

The order that things are happening is important.

When the first rung is scanned, 2961 is moved into N7:11

When the SCP instruction is scanned, the Input is still 2961

Then, after the SCP...
Forum: LIVE PLC Questions And Answers June 27th, 2018, 03:18 PM
Replies: 6
Views: 194
Posted By ndzied1
I think a clue would be to trace where the RAW...

I think a clue would be to trace where the RAW PULSE DURATION ends up. Eventual it should hit some timer and that will be in some units of msec or sec or something else.

Most likely, whoever...
Forum: LIVE PLC Questions And Answers June 26th, 2018, 11:43 AM
Replies: 9
Views: 330
Posted By ndzied1
The answer would have been easy a decade ago....

The answer would have been easy a decade ago. Take the emulated encoder output from one drive and wire it to the input of the other drive. I don't know if these drives have that capability.

Of...
Forum: LIVE PLC Questions And Answers May 28th, 2018, 08:50 PM
Replies: 13
Views: 691
Posted By ndzied1
With a soft start you have to check the...

With a soft start you have to check the documentation for the number of allowed starts per hour. For some inexpensive soft starts this number can be very low like 5 or 6. We had a customer blow up...
Forum: LIVE PLC Questions And Answers May 22nd, 2018, 05:05 PM
Replies: 16
Views: 703
Posted By ndzied1
Maybe a stupid question. I thought products like...

Maybe a stupid question. I thought products like this were all bought and sold on weight. Would an inline weighing conveyor be more appropriate?

That said, I think counting something with an...
Forum: LIVE PLC Questions And Answers May 22nd, 2018, 03:45 PM
Replies: 1
Views: 295
Posted By ndzied1
I think I found what I'm looking for: ...

I think I found what I'm looking for:

http://www.bkprecision.com/products/power-supplies/1687B-1-36v-0-10a-dc-power-supply.html

Anyone use these before?
Forum: LIVE PLC Questions And Answers May 22nd, 2018, 02:20 PM
Replies: 1
Views: 295
Posted By ndzied1
Looking for Programmable Power Supply

I'm looking for a 240W (approx) DC power supply 0-30VDC output that I can control the voltage of via analog signals (0-10 or 4-20) or over Ethernet. This doesn't have to lab grade accuracy and...
Forum: LIVE PLC Questions And Answers May 17th, 2018, 03:22 PM
Replies: 21
Views: 1,369
Posted By ndzied1
It looks like you are ramping the CV before you...

It looks like you are ramping the CV before you start the PID. Was that intentional?

There is no time scale in the image you uploaded. There is no frame of reference here.
What is the PID...
Forum: LIVE PLC Questions And Answers May 13th, 2018, 07:33 AM
Replies: 13
Views: 1,146
Posted By ndzied1
I have no experience at this voltage level but...

I have no experience at this voltage level but could you wrap a wire around the fence wire and measure the pulses that way? It’s more of a way to measure current but then maybe you could get away...
Forum: LIVE PLC Questions And Answers May 10th, 2018, 07:58 AM
Replies: 11
Views: 805
Posted By ndzied1
For any application, and especially for safety...

For any application, and especially for safety operations, you must also follow the manufacturers limits for usage such ast frequency of switching, voltage supply range, load switched, protection,...
Forum: LIVE PLC Questions And Answers May 7th, 2018, 08:17 PM
Replies: 13
Views: 1,617
Posted By ndzied1
The first mention of fuzzy logic I saw had to be...

The first mention of fuzzy logic I saw had to be over 20 years ago in a magazine. The application discussed was not a controls application but a way to count eggs coming down a conveyor belt. They...
Forum: LIVE PLC Questions And Answers April 20th, 2018, 10:37 PM
Replies: 2
Views: 429
Posted By ndzied1
How do you know it’s noise? The simple stuff...

How do you know it’s noise?

The simple stuff is:

Shielded, twisted pair with the shield only connected at one end.

Don’t run analog with or parallel to power runs.

Cross power lines at...
Forum: LIVE PLC Questions And Answers April 20th, 2018, 09:27 AM
Replies: 6
Views: 493
Posted By ndzied1
It's a very subjective choice. I think in almost...

It's a very subjective choice. I think in almost all cases, bigger is better.
How often does the operator have to interface with the screen?
How many operators are on a single screen.

We had a...
Forum: LIVE PLC Questions And Answers April 19th, 2018, 03:35 PM
Replies: 7
Views: 604
Posted By ndzied1
A very general statement is that if there is a...

A very general statement is that if there is a standard specific for the type of machine you are building then you should start with that.

For instance, if you are building a hydraulic or...
Forum: LIVE PLC Questions And Answers April 10th, 2018, 05:56 AM
Replies: 11
Views: 514
Posted By ndzied1
Many manufacturers rebrand CoDeSys with their own...

Many manufacturers rebrand CoDeSys with their own name.
Bosch Rexroth Indraworks is CoDeSys
EATON X-Soft is CoDeSys
Schneider SoMachine is CoDeSys
Wago uses CoDeSys
Exor uses CoDeSys

There...
Forum: LIVE PLC Questions And Answers April 9th, 2018, 11:09 AM
Replies: 9
Views: 830
Posted By ndzied1
I would suggest getting the RMC hardware as soon...

I would suggest getting the RMC hardware as soon as possible because that allows you to simulate motion and work out the communications on your desk instead of on the floor. I have always found it to...
Forum: LIVE PLC Questions And Answers April 9th, 2018, 09:33 AM
Replies: 4
Views: 477
Posted By ndzied1
Not sure what the final answer was but the...

Not sure what the final answer was but the spreadsheet has the wrong formula for the area of the cylinder. In calculating the radius, they did not divide the diameter by 2.

It's also unclear how...
Forum: LIVE PLC Questions And Answers April 2nd, 2018, 06:22 AM
Replies: 13
Views: 840
Posted By ndzied1
JRef, This seems never more true than when I...

JRef,

This seems never more true than when I have to explain to someone that I HAVE to put J fuses in front of their VFD because the Manufacturer’s manual says I have to use J fuses for a UL...
Forum: LIVE PLC Questions And Answers March 31st, 2018, 09:52 PM
Replies: 13
Views: 840
Posted By ndzied1
In the section of UL508A in industrial machinery,...

In the section of UL508A in industrial machinery, it says the supply terminals should be sized based on

125% of all heater loads, and
125% of the largest motor, and
Fla of all other motors...
Forum: LIVE PLC Questions And Answers March 26th, 2018, 09:24 AM
Replies: 42
Views: 2,825
Posted By ndzied1
I joked around with my apple auto-correct but...

I joked around with my apple auto-correct but Bosch Rexroth has a product that includes multiple protocols including MQTT and is geared to be quick to startup. They call it the IoT Gateway:...
Forum: LIVE PLC Questions And Answers March 24th, 2018, 06:32 AM
Replies: 42
Views: 2,825
Posted By ndzied1
We are a distributor of a lot of different...

We are a distributor of a lot of different industrial products and many of the sompanies are trying to come out with products to help people try to collect and or use the data they have.

Apple...
Forum: LIVE PLC Questions And Answers February 28th, 2018, 08:08 PM
Replies: 9
Views: 697
Posted By ndzied1
Quint is Phoenix Contact’s top of the line power...

Quint is Phoenix Contact’s top of the line power supply.

I think the low cost Meanwell supplies are more like the Phoenix contact Uno power supplies in specs and cost.
Forum: LIVE PLC Questions And Answers February 27th, 2018, 05:44 AM
Replies: 15
Views: 885
Posted By ndzied1
The units of the target range do not align with...

The units of the target range do not align with the units of the meter. The units oz and gal are both volume measurements and will cancel out if you divide them. I don’t know if perhaps that i...
Forum: LIVE PLC Questions And Answers January 8th, 2018, 05:58 AM
Replies: 15
Views: 1,309
Posted By ndzied1
I wouldn’t mind using a cheap meter on these low...

I wouldn’t mind using a cheap meter on these low level signals but if there is a chance your going to use it on mains/motor circuits I’d want to make sure the meter and leads are good quality. Fluke...
Showing results 1 to 25 of 500

 
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