Hello there! I have a question about importing data from individual cells in an Excel file to a HMI without the use of scripts. I am looking to have users input temperature and pressure data into a saved Excel file and have the system extract this information to display on a HMI tag. This data will be used to perform individual tests by the PLC. I am working with a Basic KP700 HMI panel and have noticed that scripting is not available. Is there an alternative method to achieve this task? Thank you.
Utilize Python with Pylogix for Allen-Bradley PLCs and Openpyxl for Excel file management. When working with PLCs, ensure you only use PLC tags and not HMI tags. Be sure to specify the brand of PLC you are working with.
Apologies for the confusion, but the Siemens S7-1200 PLC is the device in question. I am curious to know if the PLC has the capability to run these scripts independently or if they are limited to function blocks for processing?
While I lack personal experience with Siemens, I recommend checking out python-snap7, a Python package designed for Siemens, as well as openpyxl, a Python package tailored for Excel spreadsheets. With these tools, you can easily transfer data from your Excel file to your PLC tags. For step-by-step guidance, you can find helpful tutorials on YouTube showcasing practical examples.
Where is the Excel file saved?
Using a Personal Computer
Hi! While it's true that your KP700 panel might not support direct scripting, you could potentially use a third-party platform like Ignition SCADA, which can parse Excel data and distribute it to various HMIs. Alternatively, you might want to consider a roundabout way involving writing the Excel data to the PLC memory first (using OPC server or similar), from where the HMI can pick the data. Remember, every solution requires careful planning and considering security implications. Good luck!
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Answer: - Yes, you can achieve this without scripting. One alternative method could be using Excel's built-in export functionalities, such as saving the Excel file in a format compatible with the HMI or using Excel's data import/export features.
Answer: - Users can input temperature and pressure data into specific cells in the Excel file. The system can then extract this information to display on the HMI tag for further use in performing tests by the PLC.
Answer: - In addition to scripting, you can explore options like setting up a data link between the Excel file and the HMI, using Excel's data export features, or configuring the HMI panel to read data directly from the Excel file.
Answer: - While scripting may not be an option on the Basic KP700 HMI panel, you can explore setting up scheduled data imports from Excel to the HMI or configuring the HMI to refresh data from the Excel file periodically for near real-time monitoring.
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