Subject: SCADA Solution Development for HVAC Systems Hello Everyone, I am currently developing a SCADA solution for an HVAC system using FactoryTalk View 7. For the automation programming, I’m utilizing RSLogix 5000, as illustrated in the figure below. At this stage, I am focused on creating the Human-Machine Interface (HMI) and the SCADA application through a virtual machine, without a physical PLC or the actual network of the system. I have programmed the PLC but am constructing the HMI objects with direct reference tags (offline tags). This is being done using RSLinx Enterprise, as there is no physical connection to the system yet. I added a node and devices in RSLinx Enterprise to simulate the environment, even though I won’t have the PLC rack until commissioning. I have a few questions regarding this development process: 1. What is the most effective way to create an HMI application without a physical connection to the PLC? 2. Is it possible to test my application without this physical connection? 3. While developing my first version of the HMI in FactoryTalk View SE, I encountered an error. I’ve searched the PLCTalk forum but haven’t found a clear solution. I would greatly appreciate your assistance in resolving this error. Additionally, I need to create an HMI using FactoryTalk View ME for a PanelView 10, as well as a SE application for the SCADA PC system. Will using direct reference tagging create issues, or should I establish my own HMI tags in the data server? Which approach do you believe is more advantageous? Thank you in advance for your support! Best regards, [Your Name]
I recommend starting your screen design with HMI (Human-Machine Interface) memory tags. Once you have established these tags, you can easily connect them to the corresponding PLC (Programmable Logic Controller) addresses. If you decide later to switch to direct referencing, there's a helpful KnowledgeBase article and tool available to facilitate the transition from HMI tags to direct references. FTView Site Edition is specifically designed to create the HMI in real-time while integrated with the PLC system on the computers that will host the HMI. It allows for seamless edits and modifications even while both the HMI and PLC systems are actively running. However, it's worth noting that FTView Site Edition is not optimized for offline HMI design or for use on computers other than the one intended for deployment. Keeping these limitations in mind will help align your expectations and clarify the rationale behind its features.
It appears that your data server may not be configured properly, or there could be an issue with the syntax of the tax entry. To resolve this specific error message, I recommend exploring several potential solutions available in the RA Knowledgebase. You can find detailed guidance here: https://rockwellautomation.custhelp.com/app/answers/detail/a_id/47185. This resource can help ensure your setup is correct and your data inputs are accurately formatted.
I have encountered significant challenges in creating an effective PLC (Programmable Logic Controller) program or corresponding HMI (Human-Machine Interface) that functions correctly upon installation in the plant without access to the actual PLC hardware. Using simulators and similar tools often proves to be unproductive. The best approach is to work directly with the hardware.
Thank you very much for your responses; they have been incredibly helpful. I will do my utmost to ensure that the necessary hardware is on-site before the commissioning phase begins. Best regards, Wisam
Hi [Your Name], it sounds like you're on the right track with your SCADA development! For creating an HMI without a physical connection, using offline or direct reference tags is perfectly fine for initial design, but keep in mind that simulating the expected data flow will help you identify any logical errors before commissioning. You can test your application by using the runtime simulation feature in FactoryTalk View, which should mimic how it will behave with an actual PLC. Regarding your tagging approach, while direct reference tags can work, using dedicated HMI tags can help avoid confusion down the line, especially if you plan to expand or modify your project. It’s generally more advantageous to standardize your tags to ensure consistency and easier troubleshooting. Good luck, and don’t hesitate to share your specific error message here—maybe we can troubleshoot it together!
Hi [Your Name], it sounds like you're making great progress on your SCADA solution! For creating an HMI application without a physical PLC, using direct reference tags is a solid approach during the development phase, especially since you can simulate and test your interface in a virtual environment. To test your application, you can use the built-in simulation features in FactoryTalk View, which should allow you to mimic PLC interactions without the actual hardware. Regarding your error in FactoryTalk View SE, it might help to double-check the tag configuration or post the specific error message for more targeted assistance. As for the tagging strategy, while direct reference tags can work, establishing your own HMI tags tends to be more advantageous in the long run, as it provides better control and scalability for your project. Good luck, and feel free to share any updates or questions as you go along!
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Answer: Answer: To create an HMI application without a physical PLC, you can use simulation tools and offline tags. FactoryTalk View allows you to use RSLinx Enterprise to simulate the environment by adding nodes and devices, enabling you to construct the HMI objects using direct reference tags without needing a physical connection. This setup allows for development and testing in a virtual environment.
Answer: Answer: Yes, it is possible to test your SCADA application without a physical PLC connection by utilizing simulation features within FactoryTalk View. By setting up a virtual environment with RSLinx Enterprise, you can simulate the PLC behavior and test your HMI and SCADA applications. This method allows for early testing and debugging before actual deployment.
Answer: Answer: Troubleshooting errors in FactoryTalk View SE can involve several steps: 1. Check the error messages for specific details that can guide your troubleshooting. 2. Consult the FactoryTalk View SE documentation for error codes and recommended solutions. 3. Review your
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