10/9/2015 4:13 PM | |
Joined: 9/23/2011 Last visit: 10/4/2024 Posts: 44 Rating: (0) |
Hello to all!!! I need to acquire analog signals 4-20mA hart for ATEX sensors. Can I use 6ES7331-7RD00-0AB0 module without Zener Barriers? Thanks ------------------------------------------------------------------------------------------ |
Last edited by: Min_Moderator at: 10/12/2015 11:29:37 AMNew subject after splitting |
|
10/12/2015 12:27 PM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1054) |
hi, have a look in the manual of the S7-300/ET200M-Ex I/O Modules. Chapter 3.12 page 158: SIMATIC Automation Systems S7-300, ET 200M Ex I/O Moduleshope this helps, regards, |
Last edited by: mopS04 at: 10/12/2015 12:30:37 PMFCK WAR! |
|
This contribution was helpful to1 thankful Users |
10/15/2015 11:05 AM | |
Joined: 7/2/2008 Last visit: 9/30/2024 Posts: 928 Rating: (308) |
Hello biagiodim, It depends on what kind of ATEX sensor you have and the classification of your area. If you look at page 17 of the manual provided by mopS04, you will read,
If you have Exia sensors installed in Zone 0 then you must use Zener barrier suitable for Exia applications. Best regards, H-H |
Follow us on