5/25/2013 12:20 PM | |
Posts: 90 Rating:
|
Hey guys! I want to install a 3-way signal isolator between an analog input module (6ES7331-7KF02-0AB0) and a 2-wire transmitter. I know the proper wiring of an AI module and transmitter based on the S7 manuals but I’m not sure about the wiring in the case of adding a signal isolator. However I have considered two different wiring diagrams as shown in attached file. Could you take a look at them and give me some advice on how to do to the wiring? Should I implement Figure-1 or Figure-2? |
5/25/2013 4:12 PM | |
Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating:
|
Hello, Fig 1 you use if the isolator is not powering the sensor by the 4 to 20 mA loop. Fig 2 you use if the isolator can power your loop. So wht's in the isolator specs? Regards, Marcjan |
Problem solved? |
|
5/25/2013 7:03 PM | |
Posts: 90 Rating:
|
Thank you Marcjan! The isolator catalog is attached. As you can see it needs a 24 VDC power itself and since the input and output are separated I don’t think it can provide the loop. What do you think? Attachmente_cat_083.pdf (328 Downloads) |
5/27/2013 7:16 AM | |
Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating:
|
Hello, You are right, so you can use Fig 1 to connect your sensor. Regards, Marcjan |
Problem solved? |
|
This contribution was helpful to
1 thankful Users |
6/28/2013 9:06 AM | |
Joined: 11/18/2010 Last visit: 8/5/2022 Posts: 523 Rating:
|
hi i think Fig 2 is right because in isolatoris providing power to ai ,so not need to provide external supply between plc and isolator. viral |
We are working on a new user interface with better overview and more relevance.
To explore the new Forum, you can follow the textbox in the right column, which will lead you to the corresponding page in the new Forum. Alternatively, you can start from the main page by following this link:
https://sieportal.siemens.com/en-ww/support/forum
In the coming days, we will update the configuration step by step, so that you are directed to the new Forum by default. The “classic Forum” will remain available for all known functionalities alongside the new one.
We are thrilled to finally share the future of our Forum with you. Thank you for your commitment!
Kind regards,
the Forum Support Team
Follow us on