Hi guys,
We have been disscussing with one of our machine suppliers about a new production line. The line would consist of different machine parts (marked 1,2,etc, in picture) and a central line controller (S7-400). My first idea was to use Profibus for all communcation between the line controller and the different machineparts. In that case, there would have been one CP 342-5 at each machinepart to make a separate Profibus network for internal coms. and a integrated DP-port for external coms. with the line controller.
Now, (as illustrated in the picture) the supplier has come up with the proposition of using Profinet for communication between the line controller and the machineparts (external coms.) and there will still be a separate Profibus network in each machinepart (internal coms.).
The supplier thinks that if each S7-300 would be equiped with PN/DP CPU:s (both PN and DP integrated) there would be no need of using CP:s.
As I see this, without beeing an expert on Profinet, there would be no possibility to use Profinet I/O coms. between line controller and machineparts (that would require CP 343 lean, right?). Instead you would have to use Profinet CBA?
Does anyone of you have any (positive) experience of the CBA?
As we do not have any other machine at our plant that is using Profinet, I don´t think that this project would be the best way of introduction.
This thread is an introduction for discussions and I will proceed with more info later. In meantime you are more than welcome to come up with further questions, ideas, own experiences, etc,,
Best regards
Wille
We have been disscussing with one of our machine suppliers about a new production line. The line would consist of different machine parts (marked 1,2,etc, in picture) and a central line controller (S7-400). My first idea was to use Profibus for all communcation between the line controller and the different machineparts. In that case, there would have been one CP 342-5 at each machinepart to make a separate Profibus network for internal coms. and a integrated DP-port for external coms. with the line controller.
Now, (as illustrated in the picture) the supplier has come up with the proposition of using Profinet for communication between the line controller and the machineparts (external coms.) and there will still be a separate Profibus network in each machinepart (internal coms.).
The supplier thinks that if each S7-300 would be equiped with PN/DP CPU:s (both PN and DP integrated) there would be no need of using CP:s.
As I see this, without beeing an expert on Profinet, there would be no possibility to use Profinet I/O coms. between line controller and machineparts (that would require CP 343 lean, right?). Instead you would have to use Profinet CBA?
Does anyone of you have any (positive) experience of the CBA?
As we do not have any other machine at our plant that is using Profinet, I don´t think that this project would be the best way of introduction.
This thread is an introduction for discussions and I will proceed with more info later. In meantime you are more than welcome to come up with further questions, ideas, own experiences, etc,,
Best regards
Wille