Kasperv79
Member
Hi guys.
I been searching and reading a lot about CP341 and other external communications cards on S7-300 series CPU. but I'm still confused.
So..
We do have a production runing Ifix SCADA with a keepware OPC server. Several S7-300 series hooked on the ethernet by vendors.
The problem is that when using the external CP for communication to SCADA the porformance is very poor compared when using the internal CP card.
We cannot just change to use the internal CP card as it is used for some servo drives and the external card is to slow for this.
Is there any way to speed up the external CP card to perform as the internal?
the external CP is usug both C/K-Bus and P-Bus, is there any effect by increasing the C/K-bus from 185.kb/sec to 12MB/sec? or is the MPI C/K-Bus a seperate bus.?
Kasper
I been searching and reading a lot about CP341 and other external communications cards on S7-300 series CPU. but I'm still confused.
So..
We do have a production runing Ifix SCADA with a keepware OPC server. Several S7-300 series hooked on the ethernet by vendors.
The problem is that when using the external CP for communication to SCADA the porformance is very poor compared when using the internal CP card.
We cannot just change to use the internal CP card as it is used for some servo drives and the external card is to slow for this.
Is there any way to speed up the external CP card to perform as the internal?
the external CP is usug both C/K-Bus and P-Bus, is there any effect by increasing the C/K-bus from 185.kb/sec to 12MB/sec? or is the MPI C/K-Bus a seperate bus.?
Kasper