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Technology object for external encoder

Created by: ita2024 at: 8/27/2024 1:37 PM (4 Replies)

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8/27/2024 1:37 PM	Rate (0)
ita2024 Joined: 8/27/2024 Last visit: 10/23/2024 Posts: 2 Rating: (0)	Hi everyone, I'd like to read a position and speed data from SICK AFM60A encoder. I tried to add technology object for external encoder like in S7-1500 but in my project S7-1200 I don't have external encoder object to add. I need to save home position at the encoder too. Is it necessary to update TiaPortal or it's not possible to use this object with S7-1200? I use TiaPortal V18.

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8/27/2024 2:00 PM	Rate (0)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 11/6/2024 Posts: 4780 Rating: (729)	S7-1200 doesn't support a TO external encoder.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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8/27/2024 2:11 PM	Rate (0)
qwazee Platinum Member Joined: 3/30/2020 Last visit: 11/6/2024 Posts: 4930 Rating: (1008)	The S7-1200 handles such tasks differently. Review the following examples from Siemens for some insights. S7-1200: Application Examples for High-Speed Counters (HSC) User is using an encoder that links by Profinet communication.
	Last edited by: qwazee at: 08/27/2024 14:22:50 New information negates the helpfulness of the post Activities of this user is voluntary. There is no obligation or liability placed on this user. Though optional, your 'please' and 'thank you' is highly valued.
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8/27/2024 2:15 PM	Rate (0)
ita2024 Joined: 8/27/2024 Last visit: 10/23/2024 Posts: 2 Rating: (0)	Ok guys, so how can I communicate with the encoder via profinet if I can't use technology objects?

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8/27/2024 2:59 PM	Rate (0)
jacek d Platinum Expert Joined: 9/23/2005 Last visit: 11/6/2024 Posts: 4780 Rating: (729)	Exactly as you wrote. Over Profinet. Profinet devices use IOs to exchange data with a PLC therefore a TO is a nice-to-have feature but isn't a must. In general a manufacturer is to supply a GSDML file for a device and a manual describing that GSDML. There's also an example project on the manufacturer's site. Maybe it can shed some light.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
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