Print document

Technical Forum

Communication / Networks

I can work with profibus connector siemens in CM1241

Thread Starter: David1981   Started: 5/24/2012 11:07 AM   Replies: 6

« Previous thread Next thread »
Page 1 of 1 (7 items)
  5/24/2012, 11:07 AM
David1981
Joined 5/3/2012
Last visit: 4/8/2013
Posts: 67
Rating:
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 

Hello, How are you?

My question is the next, I´m working with Cm1441-rs485, I don´t work with the standard sub-d 9pin famele, I can work with profibus connector, for example 6ES7972-0BB52-0XA0 CONNECTOR PB,90 DEGREES,CON CONNEC. FAM. PG, The net is Mod bus Rtu, there is any problem?

Thank you so much. 



=== Edited by David1981 @ 5/24/2012 11:10 AM [GMT ] ===


=== Edited by David1981 @ 5/24/2012 11:08 AM [GMT ] ===


Top
  5/24/2012, 1:40 PM
Gabriel de Ol...
Joined 2/16/2011
Last visit: 5/17/2013
Posts: 222
Rating:
Rated: Excellent [4.07 out of 5 / rated 15 time(s)]. (15) 
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 
Hello,

Profibus Pins is:

A1 = Pin 8
B1 = Pin 3

I don't know the CM1241 Pins, if it use pins 8 an 3 so i think is OK.

Regards
Gabriel de Oliveira
It Works? Rate It.
Top
  5/24/2012, 2:08 PM
David1981
Joined 5/3/2012
Last visit: 4/8/2013
Posts: 67
Rating:
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 

Gabriel, thank you for your answer.

Yes, the CM1441 works with the pin 8 like signal A (RxD/Txd-) and the pin 3 like Signal B (RxD/TxD+), then I understand I can work with it without problems. 


Thank you, regards.
Top
  5/24/2012, 2:20 PM
Darius
Joined 9/28/2005
Last visit: 5/15/2013
Posts: 2912
Rating:
Rated: Excellent [4.02 out of 5 / rated 208 time(s)]. (208) 
Users with special expertise supervising conferences
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 
David1981 wrote:

Gabriel, thank you for your answer.

Yes, the CM1441 works with the pin 8 like signal A (RxD/Txd-) and the pin 3 like Signal B (RxD/TxD+), then I understand I can work with it without problems. 


Thank you, regards.


Profibus is a protocol, but RS-485 is a physical layer, so if you have RS-485 module you can always use Profibus connector because profibus protocol uses RS-485 physical layer. You can even use Profibus connectors for Modbus RTU devices which run on RS485.
Regards,
--------------------------------
Darius
Automation engineer/programmer
Top
  5/24/2012, 2:29 PM
Pegaia
Joined 7/24/2008
Last visit: 5/20/2013
Posts: 2025
Rating:
Rated: Excellent [4.31 out of 5 / rated 354 time(s)]. (354) 
Users with special expertise supervising conferences
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 
Hi,

the PROFIBUS cable/connector is RS485 standard.
Thake a look at the S7-1200 system manual, page 753.
The CM1241 has terminals because it could be used in standard 485 or 422 (that has differents standrad connectors diagramm).
Denilson Pegaia
Siemens Industry Sector
Industry Automation and Drive Technologies Division
- Technical Support & Hotline -
Rua Werner Siemens, 111
05069-900 São Paulo
Hotline – Atenção ao Cliente
Tel.: +55 11 3833-4040
E-Mail: atencao.cliente.ac.br@siemens.com
Homepage Brasil: www.siemens.com.br
Manuais / FAQ’s / Downloads: http://www.Siemens.com.br/Servicos&Suporte
Top
Thank you for this post from:
Gabriel de Oliveira
  5/24/2012, 4:06 PM
David1981
Joined 5/3/2012
Last visit: 4/8/2013
Posts: 67
Rating:
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 

Hello Pegaia, I think you are in a fault, the Cm-1241 rs485 hasn´t terminate, I think than  Cb-1241 has terminate, do You Think?.

 regards.




=== Edited by David1981 @ 5/24/2012 4:06 PM [GMT ] ===
Top
  5/25/2012, 7:41 AM
Darius
Joined 9/28/2005
Last visit: 5/15/2013
Posts: 2912
Rating:
Rated: Excellent [4.02 out of 5 / rated 208 time(s)]. (208) 
Users with special expertise supervising conferences
Rated: no ratings [0 out of 5 / rated 0 time(s)]. (0) 
David1981 wrote:

Hello Pegaia, I think you are in a fault, the Cm-1241 rs485 hasn´t terminate, I think than  Cb-1241 has terminate, do You Think?.

 regards.



Pegaia is right. CM mean communication module and it has connection terminal (female). CB is communication boeard and it has screw contacts.
Regards,
--------------------------------
Darius
Automation engineer/programmer
Top
Thank you for this post from:
Gabriel de Oliveira
Page 1 of 1 (7 items)
Actions
Copy Link
To conference