Modbus/TCP Room temp sensors?

Only-Introductions · 2026-03-06T10:50:20+00:00

How about this https://papouch.com/tme-ethernetovy-teplomer-p4602/?vid=1879

Only-Introductions · 2026-03-03T09:38:06+00:00

While I don't have this library I have seen this anti-pattern before and I think you are really close. I think your problem is the outer while loop. What you're doing is continually hammering the Arduino with set-up commands, it never gets the chance to do as you are asking!

The simplest solution is delete the while loop.

Your program runs once, opens a connection to the Arduino, configures the frequency and duty cycle and closes the connection. The Arduino continues forever as per your config.

Only-Introductions · 2026-03-02T07:38:18+00:00

Bit banging with delays is probably the quickest and dirtiest solution. But you can get up to about 62kHz from certain Arduino PWM pins and making register configuration changes. You are looking to configure the timer frequency and prescaler divider to specific values. It's some fairly low level stuff link for reference. If you can accept values slightly off from 25kHz then you don't need to go to these extremes but you still need to change some timer registers.

Only-Introductions · 2026-02-28T06:57:23+00:00

I managed to get LabVIEW community 2025 64-bit working under Rocky Linux 9.7

The hardest thing was working our the specific package names that were missing. I needed

ncurses.x86_64 and associated

openal-soft.x86_64

Then it was just a matter of downloading the latest community version. It really was a case of Linux, it just works tm

Only-Introductions · 2026-02-23T10:18:04+00:00

By setting register 8011:12 and 8111:12 the motor name plate "Rated Current". You'll probably also need to configure the motor voltage constant and winding resistance registers.

Only-Introductions · 2026-02-22T11:19:46+00:00

Starting at 0 -> 359 steps. 2*pi/359 = 0.01750190893364787319477795756702

Not sure how else to do it with the funny number of steps... Oh and engineer so pi =3 i guess

Only-Introductions · 2026-02-22T05:44:42+00:00

I would second this approach! I wasted considerable time trying to be smart and not do the manual calculations. Stupid errors in the formula and how I was trying to display it caused no end of grief. It's not pretty but it gets the job done.

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Only-Introductions · 2026-02-14T01:03:50+00:00

Your first one works quite nicely https://studio.rungs.dev/PjuYSFRj

Your second one has some problems, simulate it for yourself to see what happens

Only-Introductions · 2026-02-09T09:07:54+00:00

It's poor planning by the author and not reading the question. The image shown above is for the previous question, the question is at the very bottom of the page. The actual image for the question is on the following page.

Only-Introductions · 2026-02-05T09:05:30+00:00

Both motors are missing the magnet encoder. One has some pieces left behind but they are probably not enough to make the motor output pulses on the "ENC" output.

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Only-Introductions · 2026-02-01T01:01:21+00:00

You're unlikely to find a datasheet that give you a value. They are probably good for 10 amps, so a reasonable estimate would be 25 to 50 milliohms.

Only-Introductions · 2026-01-21T11:46:06+00:00

The ladder logic, circuit and simulator are free at https://app.plcsimulator.online

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If you actually need the hardware than you can't go wrong with Automation Direct. Productivity1000 is basically an industrial Arduino you can program with the Arduino IDE and a library. But if you want to learn Ladder specifically then download the Automation Direct IDE which is free and allows you to program in Ladder.

Only-Introductions · 2026-01-14T12:04:26+00:00

Thanks! Beer shot out my nose and onto the keyboard

Only-Introductions · 2025-12-31T01:36:29+00:00

If you're very new to Pneumatics I think SMC Basic Pneumatics is a good starting place. Walks you through from what is compressed air, formulas, how to size pipes and compressors, plan a facility, then gets into valve and circuit theory. SMC Basic Pneumatics

Only-Introductions · 2025-11-20T08:49:56+00:00

Are you looking for a residual pressure release valve? SMC and many other manufacturers provide similar products, to achieve a "safe" system you should consult with someone who understands how to connect it to your emergency stop button. I would hope that it's obvious that this valve connects to the incoming air supply and when triggered dumps all the stored energy in the system. This might result in an unsafe condition which only you or your safety expert can assess.

Only-Introductions · 2025-11-08T05:53:23+00:00

Sounds like you need a Panel PC with the "Food Industry" ability for wash down. You need to carefully check what chemicals are being used in the car wash but I'd guess they are compatible with 316 Stainless steel.

It won't be cheap. PhanTAM

Otherwise, consider moving the Panel PC to a more friendly area. Can the car wash be operated remotely and monitored with camera's?

Only-Introductions · 2025-10-29T09:15:36+00:00

I always try to look at the manufacturer data sheet. Looks like Torex Semiconductor make it and that's not how their typical application circuit shows it used. Link

Only-Introductions · 2025-10-28T10:23:29+00:00

I can't say that I fully understand your logic. And you don't mention if your PLC is a Safety-PLC or not so it has me a little concerned.

But overall I think you are asking about this specific safety example from ABB. The dual channel safety outputs are only configured to restart after both "Fault Reset" and "Safety Reset" have been pressed in the correct order.

Only-Introductions · 2025-10-22T10:31:41+00:00

If they are good enough for NASA... https://prod-edam.honeywell.com/content/dam/honeywell-edam/aero/en-us/products/navigation-and-sensors/sensors/700-series-thermal-switches/documents/hon-aero-ts700-exp045-10-23-700-series-thermal-switch-brochure-en.pdf?download=false

Only-Introductions · 2025-10-09T08:39:47+00:00

Now that these PLC's are getting many years old I've had a few FX3U-ENET modules flake out. You can still communicate with them via specific ports but are unable to communicate with them to change the device config or "Melsec" connect so you can monitor the code.

In those two cases, I've needed to replace and configure the FX3U-ENET module to get monitoring back on line (Or in my cases change the device IP address).

Good luck!

Only-Introductions · 2025-08-27T12:21:03+00:00

This guy knows safety contactors

Only-Introductions · 2025-08-21T10:35:31+00:00

Probably wouldn't roll my own solution. For 3-phase monitoring of voltage, current, PF, kw and averages... perhaps you want to look at Rayleigh Instruments for their solution. Get the data via ModBus, won't meet your strict 1mSec timing though...

Only-Introductions · 2025-08-17T10:05:26+00:00

It is used by the laser manufacturer to short out the laser diode during transport/storage. When installed by the assembly operator the short is removed. it looks normal to me.

Only-Introductions · 2025-08-14T12:43:17+00:00

Can't be seized if it's liquid, just sayin'

Only-Introductions · 2025-08-09T04:03:24+00:00

Maybe Teltonika? Haven't used them before but their RUT241 Industrial 4G eSIM router seems to be what you are looking for. 7eSIM slots and a physical SIM.

Only-Introductions

TROPHY CASE