There is a pre-installed secomea sitemanager 3500, on a enclosure im working on. I need to connect it to the local wifi network.

I was given an IP to connect to by the company, and can see on the appliance manager that the device is already been configured. I am able to ping at the stated IP, but I don't get a prompt when I put the IP in a browser. How can I assign a wifi network to the Device.

I recently started a new job where they specialize in Special Purpose Machines. I have no prior experience with them. They use siemens 1200, festo valves and drives.
The Programming method they use is create inputs and outputs in DBs and connect in to actual inputs/ outputs in FBs and place on main. sequence is handled buy == , so when a sequence is over a number is moved to next seq and so on. These machine have a lot of inputs and outputs, which im not used.
So is there any tips, stuff i should keep an eye on when i'm programing these machines?

Hello good people of r/PLC. Getting the error saying that the offline CRC is different to the Online CRC even though the project files are the same? Nothing was changed. Any tips, driving me mad.

hi All

Lets say i need to count in siemens plc a signal from the digital input which is max 250hz.

Does it mean that my input needs to be at least twice as fast as per first principles?

Would in practice double frequency of 500hz which is 2ms for the input be enough or it should always be higher?

Regards

I’m running a L83ES Rockwell controller in version 35. What are your suggestions for a good barcode scanner with a good AOP for Studio?

hi, i have to expand on a large existing devicenet(flexio) network, and in the input mapping/output mapping routine, it says in the top that is auto generated by "devicenet tag generator", i tried google with no luck.

anybody knows where to find this software? doesn't seam to be avaliable on rockwells site, not 100% sure tho.

Do I need to go back to college to be a controls "engineer "?

I really think I'd enjoy this work, I just don't know where to begin learning all this.

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· Adobe Acrobat

hi All

TIA18 Upd3 with 1214PLC.

As we know additional signal board on the CPU can allow high frequency counting to the values of 20khz or so. This allows high counter standard library to be used.

1: But will i be able to use onboard digital Input on that PLC to count something like 200-300hz?

2: Does PLC scan time has to be very fast to capture these pulses or does it work in different way - please explain the details if you can.

On the signal board i can see that input filters allows values from 20 microsec up to 20 milliseconds while on inbuilt IO the values are exactly the same.

3: What is the additional value of the signal board 6ES7 221-3BD30-0XB - is it just to extend IO?

How you do a position control with a VFD without encoder but distance sensor?

First time using this software program and I'm struggling quite a bit with. I'm trying to upload the program stored on a CPU as the backup we have stored is outdated but I'm not sure if this is actually achievable.

I've managed to connect to a test bench XPS-MF40 and have successfully downloaded an old backup program to the CPU but I can't find any options to upload the program to the project. The software manual mentions "It is not possible to upload the user program from the controller" but I have been told by a few of my colleagues that it has been done before on another similar device to create a new backup.

Anyone with more braincells able to help me out here?

I started a new job a month ago and am loving it. Batching and packaging process.

TLDR: Plant has Panelviews, wants to maybe upgrade HMIs or get more out of Panelviews, but I don’t know their capabilities. I have a wonderware background.

They currently have Panelviews at each station (I believe 4 per line). Stations are 2 in batching area, bagging, dryer, palletizer. This is working fine, but this plant is in the early stages of automation (I’m the first controls guy to ever work there).

They would eventually like an HMI at each station as is, plus one of the whole process on one screen for management to view on their PCs. There is also currently no real historian being utilized, that is also something we want. Data collection is huge so the option to export data to excel or something similar would be a big plus.

I talked with my manager a little about this and admitted I have very little panelview experience (which he knew before hiring me obviously) and don’t really know it’s full capabilities. I do have 6 years working with Wonderware and am very comfortable doing just about anything with it. He had asked me about doing an HMI upgrade at some point, and they’re willing to spend the money if necessary.

Question is, will panelview do what we’re looking for here? Or is Wonderware (or Ignition, which Id also have to learn), the way to go?

Any and all advice is appreciated!

Hello everyone,

I recently upgraded to Windows 11 and I’m experiencing an issue with InTouch version 10. Whenever I click on text objects that are bound to integer tags, the application freezes. However, text fields that aren’t bound to integer tags work without any issues. This problem seems to be specifically related to how the software handles interactions with integer-bound fields under Windows 11. Also if I specify a number keypad pop-up, nothing freezes.

Has anyone else encountered this issue? Here’s what I’ve tried so far:

1.	Running InTouch as administrator.
2.	Setting InTouch to run in compatibility mode         for older versions of Windows.
3.	Reinstalling/Repairing InTouch

I suspect there might be a compatibility issue with data bindings or script executions that are specific to integer values in Windows 11. If you’ve had similar experiences or have any troubleshooting tips, I’d greatly appreciate your insights. Also, if you know of any specific settings or configurations that might help resolve this, please let me know!

Thank you!

Are there any good resources out there to help me understand the fundamentals of Beckhoff PLCs for a Beckhoff novice? I just recently worked on a pet project using a Beckhoff PLC and drive to control a servo motor. I wrote a pretty simple PLC program in TwinCAT3 but it got me wondering how people typically use Beckhoff PLCs and what some of the capabilities are. From my very crude understanding of them I feel like I can see some pretty cool potential. I'm not new to PLCs, but I am new to Beckhoff and I unfortunately haven't needed to write or work on any advanced PLC programs outside of fairly basic logic so some of Beckhoff's capabilities may be lost on me.

I watched most of this YouTube series by Jakob Sagatowski (which was great) but I'm still left with a few questions.

https://youtube.com/playlist?list=PLimaF0nZKYHz3I3kFP4myaAYjmYk1SowO&si=r76Yc7qYmsxW5dWs

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1. What is the purpose / typical use case of C++ in TwinCAT3?
2. How are HMI's typically developed?
   1. Are you able to make use of the Windows aspect of the PLC to create HMI's using various PC programming languages which the PLC interacts with?
   2. Can you do this via C++ in TwinCAT3?
   3. The Youtube series mentioned "Web HMIs that Beckhoff provides"
3. It looks like you can interact, or at least run, some Windows based applications via the PLC?
   1. Assuming this is true, what are some examples / use cases of this?

I have a customer that bought a machine really cheap, because they did not have the program in the plc or the hmi, and no one wanted that risk.

I got the programs, backed them up, set up spare devices with the programs loaded and tested.

What I would like to add would be memory modules and an ethernet module.

The memory module so that they could reload the program with phone support, and the ethernet module so that they ( I ) would be able to go online with the plc while the hmi is connected to the PPI port.

I have not seen any chinese ethernet modules or memory modules for the S7 224 CN.

Anyone have a part number to help in an ebay search?

Is there anywhere online that I could get a little more knowledge on how to program kawasaki robots? Company is dragging their feet on getting me training.

https://preview.redd.it/l0rdw0mychwc1.jpg?width=1075&format=pjpg&auto=webp&s=a8afcbe8e79165937502e5f62a2755a2c23d84a8

Hey gang - looking for some help on something. Machine I'm working on has Hirschmann connectors with these in them. I'd never seen them before but in debugging the machine figured out one of the hydraulic solenoid connectors on the machine does not have (or only has very inconsistent and weak) continuity from one wire terminal to the other. The problem is that I can't find these in stock anywhere, and I keep getting told 'August' for delivery.

Can anyone give me some guidance on why this was used rather than a typical Hirschmann connector? Can I use another Hirschmann, or is there something else I can use in place of this? I've got a machine down and it's killing me that a connector is what's holding me up.

For reference: the machine is single phase main, 120VAC logic circuit. No PLC - logic is all daisy-chained limit switches carrying current to devices, etc. Machine and hydraulics are all circa 1990.

I need to preface this by saying, using safety PLCs is a pretty new thing for the company i work for. And I'm not totally sure how they should be implemented.

In the past, our systems use a safety relay, that when it trips, trips our master control relay. Our master control relay provides power to all of the PLC output modules (among other things).

So, safety relay trip means no PLC outputs can function.

How should this properly be done when eliminating the safety relay in favor of a safety PLC?

I can see what we've done in the past but I don't feel it's the "proper" way to do it.

In the past, we've had a force guided relay being energized by an output from a safety DO module, and its trip cause the master control relay to cut out, thus cutting off the regular (non safety) output module's power.

I believe that past engineers at my employer thought this was acceptable because the force guided relay is energized by the "safety" output.

This doesn't seem right to me but I'm not sure.

Do safety PLCs have the capability of stopping all outputs when there is a safety input trip? Or what is considered the "correct" way to use a safety PLC?

Hi guys

a little newer to this group hope im doing everything correctly

Anyways I have a Mitsubishi FX-48MR with GX developer and I plan on using an HMI with this plc in the near future. Someone told me I would have to buy some sort of communication module such as the FX2N-485BD or the FX/FX0N-485ADP to get modbus because that's what most HMI software supports. Am I heading in the right direction or does this PLC not even support modbus. Also when I researched those modules it seems like they wont even fit on my PLC.

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Im completely lost and I can't find answers

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any advice would be nice

​

Thanks

I am being exposed to plc programming for the first time in my control circuits class. My partner and me are trying to program one of the examples circuits from the manual for the EZ512-AC-RC and have run into an issue. The "timing relay flashing" example has a connection to DD5 as the top line but we cannot get the first D to appear, we have the 2nd D and the 5. Any advice?

I just got a new laptop and finally going to separate all this Siemens, Rockwell, Schneider etc software to a different VMs instead of having everything on one machine. Did anyone got a Hyper-V sorted with these software and got comms working too?

Hello guys! i need help with an application in who i want do show my communication setup at the rslinx, but happening this when click in communication setup, somebody know why?

I’m not a Siemens guy, and I typically avoid serial bus’s at all costs. But a company out of ecuador sold my client this panel complete with this panel full of automation direct VFD’s all on the same serial bus.

They’ve been having constant trouble with the entire bus crashing intermittently, and now we can’t even get it to work at all. They’ve sent us 3 VFD to replace and new (but still too big) cable. The cable is too large to fit under the terminals daisy chained without causing damage to the terminal.

I have asked this company to allow me to put in profinet option cards and Ethernet switches but they insist that there’s nothing wrong with using their serial bus.

What do you think? Is this serial bus out of hand or industry standard?

I’m a “PLC programmer” (more of an IE Tech). Don’t do a lot of from scratch programming. More of troubleshooting and keeping the plant running. We do write some ladder for new system but the majority is copy and paste, making edits, and proving it’s not a programming issue.

I’ve never interviewed someone but have been asked to help with interviewing an applicant. What are some interview questions you’d ask to a potential intern for such a position?

Hi! I have a project involving communicating an Omron CJ2M-33 Processor with Aveva Edge 2020 (Indusoft 8.1 rebranded AFAIK).

I was able to connect using the OMETH driver, but it turns out I have to convert my integer values from INT to UINT-BCD in order to load them into couters for preset. Is there any other way to interconnect these?

Just saw one being demo'ed at an expo and it's blowing my mind. There's got to be something that makes it too good to be true because they've been out for about 10 years and all I see in factories are conveyors.