Limited mostly by maximum response
time
15Nr of IEDs / line
Modbus RTU
200Nr of IEDs
Limited mostly by maximum response
time
15Nr of IEDs / line
Modbus TCP
200Nr of IEDs
Limited mostly by maximum response
time
15Nr of IEDs / line
DNP serial
200Nr of IEDs
Limited mostly by maximum response
time
15Nr of IEDs / line
DNP LAN
If I/O count is small, number of IEDs can
be bigger
200Nr of IEDs
15Nr of IEDs / line
Table 7.3-2 Impact on process communication
CommentsImpact on process com-
munication
Function
Always included- 0%Local process database
- 2%Mirroring
- 2%Hot Stand-by redundancy
- 25% when total data update rate to all
NCCs is 50% from the process data
update rate
- 25% - 0%Gateway / NCC connec-
tions
- 24% when Process display with 1 050
measurement objects in Workplace
- 18% when Process display with 1 050
switching device objects in Workplace
- 4% when Process display with 150
measurement objects in Workplace
- 2% when Process display with 150
switching device objects in Workplace
- 24% - 1%Process display Work-
place
Per Workplace with Trends with 10
curves on 30 seconds interval logging
- 1%Trends Workplace with
data logging
38
1MRS756804
MicroSCADA Pro
SYS 600C 1.92
Product Guide