Hello everyone, I need assistance with scaling an analog value from a master drive to a Danfoss drive while replacing the master drive with the Danfoss drive. I am utilizing Siemens Step7 for my programming, and I have attempted to use FC105, but it is not functioning as required. Can someone please provide me with guidance on this matter?
Is anyone out there? Waiting for a response.
Are you struggling with 'scaling' issues in your PLC system? In most cases, the problem stems from a lack of understanding of basic math principles. You don't have to rely on special functions within the PLC to scale signals - the slope-intercept formula can easily resolve linear scaling issues. The formula y = mx + b is key here, with m representing a scaling factor, b denoting a fixed offset, and y indicating the output. For the more complex 0.03% of cases involving non-linear curves or unusual response devices, an interface unit can often provide a solution. Remember, patience is key when seeking help on message boards - it's best to give others a chance to respond before bumping your post.
User akhunzada136 asked for help, but with that kind of attitude, it's doubtful anyone will be willing to assist. Any takers? Click here to find out more.
I apologize if my method of addressing an issue has caused any discomfort, but I often find it helpful to share my feelings through online posts. The sudden shift in values caught me off guard, otherwise I would have refrained from bringing up the topic. Thank you for understanding.
It appears that the original poster may not be a native English speaker. Although they may not have been very polite in quickly bumping their own post, I regret to say I don't have an answer to their technical query. I suggest searching for the phrase "You catch more flies with honey than you do with vinegar" to find more information on the topic. Cheers!
Hey there, it sounds like it could be an issue with the setup parameters in FC105. Ensure that the MIN_PER/MAX_PER limits are correctly configured. Furthermore, keep in mind that the input has to be within the MIN/MAX range set in the FC105 function. Also, check your I/O scaling in the Danfoss drive. Contrary to popular belief, not all drives come factory-set with a standardized 0-10V or 4-20mA, instead, they often default to the full range of the data type. I hope this helps!
Hey there, I've faced similar challenges while working on a Danfoss drive before. While I can't give you an exact answer without understanding the specifics of your setup, I can share what worked for me. First, I would advise thoroughly checking your scaling parameters in FC105. If even one is incorrect, it could throw everything off. Also, try to adjust the parameters directly on the Danfoss drive rather than through the Siemens Step7. You may need to refer to the specific drive's manual to understand the scale conversion required. Lastly, remember to monitor the analog output value during the test run for better troubleshooting. Keep trying - I hope you'll manage to sort this out soon!
Hi there! It sounds like you're on the right track with trying to use Siemens Step7. However if FC105 isn't giving you the results you need, maybe you could try using the normalization function block (FC105_Scale, I believe). Remember to check that your parameters are correctly defined. For the Danfoss drives, be sure to check the drive's communication parameters and ensure that the scaling in the drive matches what you're trying to achieve. Don't forget, the manual can be your best friend in these situations!
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Answer: 1. How can I scale an analog value from a master drive to a Danfoss drive using Siemens Step7? - To scale an analog value from a master drive to a Danfoss drive using Siemens Step7, you can utilize function blocks such as FC105. However, if FC105 is not functioning as required, you may need to troubleshoot your programming logic.
Answer: - If FC105 is not working properly for scaling analog values between drives, you can check your programming logic for any errors or inconsistencies. You may also consider consulting the Siemens Step7 documentation or reaching out to online forums for assistance.
Answer: - When replacing a master drive with a Danfoss drive, ensure that you understand the communication protocols and data formats supported by both drives. Additionally, verify that the scaling factors and parameters are correctly configured in your Siemens Step7 program to accommodate the change in drives.
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