Navigation
Communication of S7-300 with M-Bus
Created by: Pravin Patil India at: 9/10/2008 6:11 PM (14 Replies)
Rating 
Thanks 4
| 9/10/2008 6:56 PM | |||
|
Posts: 487 Rating:
|
If you want a modbus interface at ET200S, you should usethe module below. It support modbus master or slave. It also supports other protocols. But I think you are looking for modbus master. It supports RS232, 422 and 485.
http://support.automation.siemens.com/WW/view/en/9260793 And some other useful info http://support.automation.siemens.com/WW/view/en/20270713 |
||
Last edited by: JMJ at: 9/10/2008 7:26 PM |
|||
| 9/10/2008 7:19 PM | |
Joined: 9/27/2006 Last visit: 11/14/2024 Posts: 12294 Rating:
|
Hello guys; JMJ, I believe Pravin is requesting help on M-Bus, which I have learned to distinguish from Modbus (beware vendor's shortcuts!). Pravin is mentionning energy-meters in his system, and that is the keyword: MeterBus (shortened to M-Bus) is dedicated to energy metering applications, electric distributioon, water distribution, BTU-metering, etc... It is a pulse-based signal, travelling on 2wire, power bearing lines. Very simple and cheap to replicate, and very common in these equipments now. Unfortunately to my knowledge, Siemens does not provide a M-Bus interface, not in the A&Ddivision anyway. I'l check tomorrow if there are any offerings in the Power and Transmission sections (SICAM line), but for now all I can suggest for this application is some sort of M-Bus to RS-232 gateway. Here are a few that can be found on the net: Westermo M-Bus to RS-232 gateway: http://www.modelec.nl/product.php?id=136 Techbase offers: http://www.a2s.pl/en/m-bus-10-p-3150.html |
| 9/10/2008 7:31 PM | |
|
Posts: 487 Rating:
|
Thanks Daniel for that clarification. I was surelytakenfor a ride there. |
Last edited by: JMJ at: 9/10/2008 7:32 PM |
|
| 9/11/2008 7:11 AM | |
|
Posts: 22 Rating:
|
Dear Daniel Chartier Thanks for support, You understand my exact requirement. I have doubt that the Interface module 6ES7138-4DF01-0AB0 support this protocol or not. Because in this ET200S station there are only two interface modules One is for ModBus/USS & Another is for ASCII / 3964R. Regards Praveen Patil |
| 9/11/2008 12:01 PM | |
|
Joined: 9/27/2006 Last visit: 11/14/2024 Posts: 12294 Rating:
|
Hello Pravin; If you cannot find a M-Bus to RS232 converter that supports ASCII, then you might have to look at a M-Bus to Modbus converter. You can find many such items on the web, such as: http://www.resi.cc/papers/files/Datasheet_RESI-MBUS-MODBUS_Converter_series_E20.pdf Depending on the price, they might be an acceptable option, using the Modbus serial interface pointed out earlier. Siemens Building Technologies has a few M-Bus controllers andconverters in their Simeca line; see hereBut I have no access to pricing or manuals directly. Maybe someone from SBT could propose more options for your application. Hope this helps, Daniel Chartier |
| 9/11/2008 1:31 PM | |
|
Posts: 22 Rating:
|
Dear Daniel Chartier Thanks for info. It will definately help me to move forward towords solution for this problem. Regards Praveen Patil |
| 3/19/2009 12:47 PM | |
|
Posts: 5822 Rating:
|
Hello, about M-Bus there is also a solution for CP 341, this CP might be used within a ET200M unit too. This solution is being tested with the shown units I add to this post in the PDF file. If you are interested please contact the international technical Support. Best regards J_Bell AttachmentAH01_2008-07-22_M-BUS_to_SIMATIC_S7_M-Busgeräte_EN.pdf (1107 Downloads) |
This contribution was helpful to
|
|
| 8/24/2012 1:30 PM | |
|
Posts: 2 Rating:
|
Dear J_Bell, What is the situation nowadays? Is there a M-Bus connection to S7 available. Preferably to TIA Portal. Regards, Rauno |
Follow us on