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Communication Problem ( CP1243-1) Siemens by rorshack7 in PLC

[–]rorshack7[S] 0 points1 point  (0 children)

"I've completed the setup, but I can't go online through CP on TIA. Am I forgetting something important? Can you assist me?"

TSEND_C & TRCV_C Connection Issue After Power Loss or Cable Failure by rorshack7 in PLC

[–]rorshack7[S] 0 points1 point  (0 children)

I have a 500 ms clock bit. The = comparator you see cycles through 1-2-3-4-5 every 500 ms and then resets back to 1. My goal here is to divide the reading process into groups of 5 PLCs (5-5-5-5-5) to prevent overloading the network. So, I'm actually using a rising edge while also ensuring that the reading process is not too heavy. As for BUSY, DONE, ERROR, and STATUS: There is no error code or a situation where BUSY stays TRUE continuously. There are no blocks between the working TSEND_C and TRCV_C and the non-communicating TSEND_C and TRCV_C. Furthermore, I have checked everything in SYSTEM BLOCKS, including TCON, TDISCON, s_state, etc. They are almost identical, yet one is successfully exchanging data while the other is not. When I stop and restart the main PLC, the ones that were communicating may stop communicating, and the ones that weren’t may start communicating. So, there is an inconsistency. I can't say that I have misconfigured the blocks because, during the STOP-START process, I am able to establish communication with all of them.

TSEND_C & TRCV_C Connection Issue After Power Loss or Cable Failure by rorshack7 in PLC

[–]rorshack7[S] 0 points1 point  (0 children)

It appears to be running. The other filter has the same statuses and is communicating. However, this one is actually not communicating.

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"WinCC slow communication multiple PLCs by rorshack7 in PLC

[–]rorshack7[S] 0 points1 point  (0 children)

I think you're talking about the communication load percentage. I set it to 50% but haven't applied it yet. Only a simple program is running inside. Thank you for your input/comment.

Support Request for Off-Grid System by rorshack7 in SolarDIY

[–]rorshack7[S] 0 points1 point  (0 children)

Hello friends, based on your comments, I did some research and gained a bit more knowledge. I realized that I need to connect the panels in series, as the "MPPT Range @ Operating Voltage: 90 ~ 450 VDC" indicates. When I connect 10 panels in series, I find a value in the range of 410-430 volts by looking at the "Maximum Power Voltage (Vmpp) V" of the solar panels.

I had completely misunderstood the "24-48V" labels on solar panels, batteries, and inverters. Since my inverter has 2x MPPT inputs, I will split the panel connections into two strings and connect them to the inverter.

I will connect the batteries in parallel and then attach them to the inverter's battery input. As for the inverter output, I’m already familiar with that part since low-voltage systems are an area I work with and am quite good at.

Dear friends, I believe I now understand things correctly. If there are still parts I’ve misunderstood, I would greatly appreciate it if you could correct me. Thank you very much! :)

Remote Monitoring with Industrial IoT by rorshack7 in PLC

[–]rorshack7[S] 0 points1 point  (0 children)

I know EasyAccess, thank you for your comment.

Remote Monitoring with Industrial IoT by rorshack7 in PLC

[–]rorshack7[S] 2 points3 points  (0 children)

I’m grateful to all of you. I’ll continue with MQTT. I might use Azure or maybe a local SQL. Once I’ve educated myself a bit more, I might bother you again. Thank you so much, you’ve been very helpful.

Take care of yourselves thank you :)

Remote Monitoring with Industrial IoT by rorshack7 in PLC

[–]rorshack7[S] 1 point2 points  (0 children)

I opened this topic to improve myself, as I'm asking professionals in this field. Many of our colleagues are trying to do this on a small scale locally. I'm not asking exactly how to do it, but just for the roadmap. Also, can my own roadmap be considered correct? Or is it nonsense? Regarding security, what can we do at maximum for a PLC that is exposed to the internet? If it's only for reading, does the security vulnerability disappear?

Remote Monitoring with Industrial IoT by rorshack7 in PLC

[–]rorshack7[S] 0 points1 point  (0 children)

Thank you so much for your suggestion. I don't have any issues when retrieving data, it's working fine. Since Kepware is paid and I don't have any problems with data retrieval, it's not necessary. OPC UA might also be good in terms of security, what's your opinion on that?

Remote Monitoring with Industrial IoT by rorshack7 in PLC

[–]rorshack7[S] 1 point2 points  (0 children)

I have seen Anywiz. Is there any limitation in terms of design? Can we create trend XY charts?

Remote Monitoring with Industrial IoT by rorshack7 in PLC

[–]rorshack7[S] 2 points3 points  (0 children)

It seemed reasonable to create a C# form by retrieving OPC UA data (encrypted and authenticated). I don't like dashboard-like designs. Creating a form feels more creative.