3/21/2020 6:06 AM | |
Posts: 5 Rating: (0) |
hlo all i am beginner of plc i want information about" how to interface simatic s7-200 with cpu st40 for modbus(tcp/ip) communication " thanks |
3/21/2020 4:30 PM | |
Joined: 3/28/2010 Last visit: 9/21/2024 Posts: 1056 Rating: (213) |
There's 40 pages on Modbus communications starting on page 454 of the S7-200 Smart system manual. It is too large a file to attach. Link: https://assets.new.siemens.com/siemens/assets/api/uuid:aa045b50-b9f4-4e46-a4c4-ca882c5f00ec/version:1573480788/s7-200-smart-system-manual-en-us.pdf |
This contribution was helpful to2 thankful Users |
3/23/2020 11:08 AM | |
Posts: 5 Rating: (0) |
pls send some sample program modbus communication in s7 200 by using tcp/ip thanks for ur help |
3/23/2020 11:24 AM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello Vicky; S7-200 or S7-200 Smart? The hardware and software is different in both families of processors, for example, S7-200 Smart PLCs have an integrated Ethernet port, S7-200 PLCs do not. S7-200 Smart sample programs and help are provided by Siemens India. Search the web for their site and documentation. S7-200 PLCs have support for Modbus RTU (serial) through an optional library, but not for Modbus TCP. https://support.industry.siemens.com/tf//ww/en/posts/modbus-tcp/16225/?page=0&pageSize=10 We can provide help and information on products that we have access to (Siemens has restricted S7-200 Smart PLCs to the Asian market, Europe and the Americas cannot access them), please be sure to ask precise questions. Daniel Chartier |
Last edited by: dchartier at: 03/23/2020 11:25:37 |
|
This contribution was helpful to1 thankful Users |
3/23/2020 12:11 PM | |
Posts: 5 Rating: (0) |
sorry for the mistake i mean "s7-200 smart" thks for ur action Attachment6ES72881ST400AA0_datasheet_en.pdf (360 Downloads) |
Last edited by: Vicky@987 at: 03/23/2020 12:12:44Last edited by: Vicky@987 at: 03/23/2020 12:38:32 |
|
3/23/2020 1:42 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello Vicky; Have a look at the FAQs of the S7-200 Smart PLC (Siemens India link below): 5. Does S7-200 SMART PLC support Modbus TCP/IP protocol or Profinet? Yes it supports both Modbus TCP/IP and Profinet, except compact models are designated by a lower case "s" character (serial port only) to use Modbus TCP/IP use STEP 7-Micro/WIN SMART V2.4 and the S7-200 SMART V2.4 CPU firmware. https://new.siemens.com/in/en/products/automation/systems/industrial/plc/simatic-s7-200-smart.html The S7-200 Smart system manual has a chapter on Modbus/TCP communications,you already have access to this manual, explaining the libraries you can use to setup Modbus TCP (for example, the MBClient function). We have already sent you links to the system manual and the manual's chapter on Communications; if needed there is also a link to this manual in the website above( in case you missed it). There is no other information or Modbus/TCP samples that I can see in these links. However, there is contact information for Siemens India, with a Contact Forms button (you could try General Enquiries for your first request). You could ask them if they have access to samples that are not available to the public at this time. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 03/23/2020 13:53:44 |
|
Follow us on