10/11/2016 8:52 PM | |
Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating: (707) |
Hello, Is not possibile to use DP/DP Coupler because the S7 200 is not a Master, In the other side what you have, maybe a S7 300/400? Perhaps have a look below you can exchange data via MPI: http://support.automation.siemens.com/WW/view/en/23548936 or via Profibus you need a EM277 module : |
Last edited by: Ste39 at: 10/11/2016 9:19:03 PM |
|
This contribution was helpful to2 thankful Users |
10/12/2016 6:10 PM | |
Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating: (707) |
Hello, for sure 2 EM277 works, have a look the thread below and in particular Marcjan post: Multiple em 277 - Entries - Forum - Industry Support - Siemens |
This contribution was helpful to2 thankful Users |
10/13/2016 7:23 PM | |
Posts: 5225 Rating: (1192)
|
Hi there.
The Profibus (DP) connector you speak of does not show that Profibus is used. The communication is PPI - as you can link through the connector to the PC with the Microwin software. To me the below recommendation will serve you very well.. provided you have an MPI port on the {new} PLC. There is no need to add hardware and no need to make any changes on the S7-200 side. I think Ste39 earned a rating for his suggestion.
The S7-400 will use the "get" function to fetch data and "put" to place data. That means the communication will be software driven from the S7-400 side. What you need to know is the PLC network address and the address of the data you are accessing. This is the road that I would take - it is the least interference into how the system works now. BUT make VERY sure you do not write to sensitive data. Greetings. |
This contribution was helpful to3 thankful Users |
10/14/2016 7:37 AM | |
Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating: (707) |
Hello William, The 224XP "6ES7 224-2BD23" like the one that our friend Lu has also it can be as MPI Slave or I'm wrong? 6ES7214-2BD23-0XB0 - Product Details - Industry Mall - Siemens WW |
10/14/2016 4:31 PM | |
Posts: 5225 Rating: (1192)
|
Hi. Yes it is possible to have the S7-200 link as MPI slave. That however does not make the port an MPI port.. it is a PPI port. There are differences between PPI and MPI. There are enough the same to make the S7-200 link as MPI slave. There enough differences to prevent having the S7-200 be an MPI master. w |
Follow us on