Hello, I am looking to link FactoryTalk View ME with RSLogix500 to monitor the real-time feedback of HMI buttons in the RSLogix500 ladder logic. I am utilizing a PLC SLC5/03. The steps I have taken are as follows: 1. Establish a connection between the SLC5/03 and RSLinx Classic. 2. Access RSLogix 500 and upload the ladder logic. 3. Launch FactoryTalk View Studio and connect it to RSLinx Classic via the OPC Server. 4. Design the HMI and import tags. 5. Assign tags to the HMI buttons. When testing the application on the HMI, an error message appears stating "Cannot write 1." If I substitute the real PLC SLC5/03 with RSEmulate, the system performs correctly and I can observe the live response of the HMI buttons in the RSLogix500 ladder logic. Furthermore, when using FactoryLinx to link with the actual PLC, it functions properly. However, I am unable to view the true response in the RSLogix500 ladder logic as it only connects with RSLinx, not FactoryTalk Linx. My inquiry is: Why is my real PLC not reacting to FactoryTalk View HMI Buttons when I connect FactoryTalk View through RSLinx OPC Server?
Are your communication settings properly configured for runtime?
In order to establish communication with your SLC in FactoryTalk View Studio, follow Alan's instructions by setting up a device shortcut in the "Communication Setup" section of the explorer window. Ensure that the "Runtime (Target)" is configured for your SLC 503 PLC, which lacks built-in ethernet connectivity, likely requiring a direct serial cable connection. Set up the Serial DF1 driver in the Runtime target window and add the SLC 503 to the driver for successful communication.
Thank you for responding. I have not yet established communication within FactoryTalk View Studio. Currently, I am connecting to the SLC by configuring an OPC Server and linking it with the RSlinx OPC Server. I am planning to set up communication in FactoryTalk View, but I am unsure how to go online with RSLogix500. Do I need to simultaneously set up communication in FactoryTalk View and RSlinx, or is there a way to integrate the FactoryTalk Linx API into RSLogix500?
FactoryTalk View communication is essential for seamlessly integrating FactoryTalk View ME HMI with your SLC 503. This setup is exclusively configured within FactoryTalk View ME and cannot be done within RSLogix500. If you wish to establish a connection between RSLogix500 and your SLC, RSLinx remains the go-to tool. Despite being separate connections, both FactoryTalk View ME and RSLogix500 rely on the underlying RSLinx/FactoryTalk Linx software for smooth operation.
Is it possible to simultaneously connect Rslogix500 and Factorytalkview Studio to a PLC in order to monitor the real-time status of HMI buttons within the ladder logic program?
There's a possibility that the error is due to the write protection settings of the PLC. When using a physical PLC, there's usually a provision for write protection. This will deter any unauthorised access or prevent unexpected changes in the PLC program. If write protection is enabled, your HMI will not be able to write values to the PLC. In contrast, this is not a problem with an emulator such as RSEmulate because it doesn't require write protection. Try checking the PLC's write protection settings to see if this could be causing the issue. If that's not it, you might need to further troubleshoot the communications settings between your PLC and HMI.
Hmm, it seems like you've done everything pretty much right so far. Remember that RSLogix500 isn't designed to give real-time feedback like modern control systems. It might just be a compatibility issue with the older series PLC. Sometimes, there's an issue with the permissions set on the channels; ensure that they are configured for read/write access. That could be what's giving you the "Cannot Write 1" error. Last resort could be to try a different version of RSLinx Classic, or check if there's a firmware update available for your PLC. Good luck!
It sounds like you've done a thorough job with your setup, but let's see if I can suggest something that might help. Have you checked the security settings on your PLC? It might be preventing the write command from FactoryTalk because of stringent security settings. Also, check to see if the RSLinx OPC Server is recognizing your PLC correctly. Sometimes communication issues can arise that impede the connection. Lastly, check your tag configuration. Typos or incorrect tag types can create problems when trying to write to your PLC. It's always worth a double-check, even if you believe you have done everything correctly.
It sounds like you've done a thorough job with the troubleshooting. The issue might be specifically related to the SLC5/03 model. Due to its older generation, certain write commands from HMI applications like FactoryTalk View ME might not be able to fully communicate via RSLinx OPC Server properly. RSEmulate, on the other hand, being a more updated software, might not have this limitation. You might want to consider upgrading to a newer PLC model, if possible. Also, I would recommend double-checking your tag addresses and making sure you have the correct read/write permissions setup. If you have write protection enabled on the PLC, that could generate an error as well.
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Answer: - This error message usually indicates a communication issue between FactoryTalk View and the PLC. Double-check the configuration settings and ensure proper connectivity between FactoryTalk View, RSLinx Classic, and the SLC5/03 PLC.
Answer: - This difference in behavior suggests a potential problem with the communication setup specific to the real PLC. Verify the settings related to the SLC5/03 PLC connection in FactoryTalk View and RSLinx Classic to troubleshoot this issue.
Answer: - This issue might stem from how the tags are mapped or configured in FactoryTalk View Studio. Check the tag assignments and ensure they are correctly linked to the HMI buttons and the SLC5/03 PLC in order to observe the real-time response in the RSLogix500 ladder logic.
Answer: - To troubleshoot connection problems, review the
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