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I just looked and I have 4 pieces MMTCPBCONV220 of the 220 volt power supply version (also works on 230V) on stock. Can be shipped via UPS quickly if order received before 1200hrs (our local time Rotterdam) because then the UPS guy comes for the daily pickup. Price ex. works is Euro 240,- a...

You could also use this, I used that many times. They work great and reliable (built with automotive electronics specifications) and not expensive. We can deliver them quite fast. See: https://www.proconel.com/product/mmtcpbconv-tcp-rs232rs485-ethernet-serial-converter/

I would use a PID controller for controlling the valve and a separate PID controller for controlling the pump, because it will be almost 100% sure that the parameters of those loops will be different. Of course you can set the limitation settings for the pump inside the frequency invertor, to...

No problem, very easy to make with a Pro-face GP4201TAD touchpanel. It has a modbus RTU port that you connect to the PLC that will act as the various modbus RTU slave(s). And it has an ethernet port that you configure as a modbus TCP master that reads all field devices over the ethernet. Inside...

It also happened to me that only 1 of the 2 safety circuits was opened en I could not re-activate the safety relay. I first had to open -both- safety circuits and only after that I was able to reset the circuit. This happened when I installed a photocell in one of the 2 circuits because the...

Are you 100% sure you want to use a PC with an unreliable OS like windows. It will hang now and then..... Another possiblity is using a Pro-face touchpanel (running windriver OS) conntected via RS-485 RTU modbus. You could use a Pro-face GP4116 touchpanel https://cascade.net/en/visualisation/...

Emergency stops can sometimes be wired with 2 (or more) contacts within the emergency stop button. 1 (or 2 ) break contacts for the emergency stop circuit connected to the safety relay. And a separate contact for signalling to the PLC.

I personally have very bad experiences using RTDs in industrial processes and prefer the ruggedness and more immunity to cabling and noise of a well calibrated thermocouple, especially for these kinds of temperatures. Is there a specific reason why RTDs are being used and not thermocouples for...

Long time ago, in the past, I had during my times at Philips a serial communication card with 4 serial ports. I could set it into RAW fully transparant mode and an "interpret" mode. Of course I set it to transparant because my data bytes could be anything from 0 to 255. It happened that 2 of the...

You could take a Pro-face GP-4201TAD (or lager) touchpanel. With its ethernet port you let it communicate with the generator controller. The same ethernet port can then be used to access this GP-4201TAD touchpanel with a smartphone/tablet or windows-PC application in the operator control room...

Those of Schneider were used in our Spanish factory because in that factory they were more or less "married" to Telemechanique..... In the controlpanels we moved from other factories to Spain were the Eberles, they didn't break down, but the Schneiders did: unneccesary switch a 1MW kiln off with...

I prefer to use resistive touchpanels in industrial environments. Much easier to operate and direct response when you touch it. See our nice panels here, I can also develop applications for you, >10 years of experience with them. https://cascade.net/en/visualisation/

The nice thing about Rittal panels is that you can order them with the perforated square holes on the sides. In these whole you can put the bolts that center themselves automatically on the screws, they are inside a square housing (don't know the exact word for it). And on these rails you can...

Yes I also used lexan plates over the 230V/400V wiring. That is a good solution.

Sounds like a health & safety officer that wants rotating doors on all intersections of roads so no collapses can occur and the health & safety officer is God above anything else (or became God after an accident in the past). I worked in many 400Vac 3 phase installations and yeah (like many of...

For protecting a 1450°C kilns I used a great deal of Eberle phaseguard relays. They automatically switched the 1MW power off to the 31 100A heating elements in case of a phase failure. I cannot recall one of them ever braking down in more than 10 years time...

A while ago there was a topic on this. Don't make the same mistake by using the wrong ethernet cable type. If you're making a point to point connection (without a switch) you should use a crossed ethernet cable, otherwise use a switch when you connect both units. Modbus TCP uses ports (502 and...

Is there some of firewall in your windows system trying to protect something? Maybe try with an old windows 7 (or XP) system while not connected to internet.

Yeah, sometimes you have to get back to the basics, are the connections ok? And the timeout messages send you on a wrong path, then you think the software is not ok. Very nice that you got the Iskra device going and now you also learned a lot about Modbus on the side. It is a really nice...

There is also another important thing with regard to modbus TCP (and RTU). I had these problems a lot while using the default driver settings in Pro-face touchpanels. Of course you have the port 1024 (must be enabled by the way on your pc!!!) and the IP addresses of a few modbus TCP slaves (see...