AndyHill
Electrical
- Nov 19, 2002
- 18
We have a simple system with about 131 tags. And require a fast up date to our HMI.
We have the following hardware
Siemens CPU 315
Siemens RS232 -> MPI interface
Kepware OPC Server software
Cimplicity Plant HMI
What I have found is that with the 131 tag we only get 5 tags updated a second. Therefore this makes the HMI graphics jumpy as we are trying to measure position on a vessel.
Q1)If we were to change the Siemens RS232-MPI link to the siemens MPI-> PCMCIA adapater would there be an increase in the ammount of refreshes a second I get.
Andy
We have the following hardware
Siemens CPU 315
Siemens RS232 -> MPI interface
Kepware OPC Server software
Cimplicity Plant HMI
What I have found is that with the 131 tag we only get 5 tags updated a second. Therefore this makes the HMI graphics jumpy as we are trying to measure position on a vessel.
Q1)If we were to change the Siemens RS232-MPI link to the siemens MPI-> PCMCIA adapater would there be an increase in the ammount of refreshes a second I get.
Andy