I need assistance with setting up communication between a Siemens S7-300 CPU and a GE drive AF-650 using Profibus. Can someone explain the different PPO types and suggest the best one to use for my requirements? I need to control the drive's on/off function, adjust speed reference, monitor operational status (speed, voltage, current), and report any faults. Your help is greatly appreciated. Thank you.
I explored the GE website to verify if these products are truly branded by Danfoss. Unfortunately, I was unable to locate a diagram of the control system. Could you also provide the GSD file for reference?
Whether you have an AF-600 FB or an AF-650 GP drive for fans and pumps, we have provided the necessary GSD file along with the control word for easy integration.
To simplify the process, start by using PPO3 commands. By utilizing a few move commands along with conditional 047C and 043C to PQW264, you can enable the drive. Additionally, setting a value to PQW266 for speed reference is crucial. It seems like the control word bit pattern is correct, but there may be some confusion between START and ENABLE functions. Give it a try and observe the results. Which parameters in the drive initiate profibus communications?
After more than a decade, the GE 650 drives remain in use as companies look to upgrade their PLC systems from GE to Rockwell. Is there a GSD file available for the GE AF-650 drive that someone could share? It seems to be difficult to locate online.
With the Siemens S7-300 CPU and a GE drive AF-650, I'd recommend the PPO Type 1, typically used for compact devices like this. You'll have access to cyclic data exchange, able to control your on/off function and adjust the speed reference as you need to. For fault notification and monitoring operational status, the Siemens S7-300 CPU offers some powerful and user-friendly diagnostic tools. Make sure to configure your 'GSD file' in the Drive config tool, as this helps your Profibus Master recognize the slave device. Study your drive's user manual thoroughly too, it's likely to hold additional helpful information for your specific use case.
For your requirements, I'd recommend using PPO Type 5 - it's a flexible and comprehensive option to integrate variable speed drives like your GE AF-650 into your Siemens S7-300 CPU via Profibus. It allows you to control the on/off function and adjust speed reference easily, and also enables monitoring parameters such as speed, voltage, and current. Plus, PPO Type 5 supports diagnostics information, so you'll be able to get fault reports. This should cover all your communication needs without over-complicating things. However, make sure your drive is compatible with PPO Type 5, as some older models might not support it. Always cross verify from the official documentation for both devices.
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Answer: - PPO types in Profibus refer to the Parameter-Process Output data structure used for communication between devices. They define the data format and content exchanged between devices.
Answer: - The best PPO type to use for controlling the drive's on/off function, adjusting speed reference, monitoring operational status, and reporting faults would depend on the specific requirements and capabilities of the devices. It is recommended to refer to the documentation of both the GE drive AF-650 and Siemens S7-300 CPU to determine the most suitable PPO type for your application.
Answer: - To set up communication between a Siemens S7-300 CPU and a GE drive AF-650 using Profibus, you will need to configure the communication parameters, set up the appropriate PPO types, and ensure proper addressing and data exchange between the devices. Refer to the respective device manuals and Profibus configuration tools for detailed instructions on configuring communication for optimal control and monitoring.
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