Slc 5/05 Performance Considerations - Allen-Bradley SLC 500 User Manual

E-2 Communicating with Devices on an Ethernet Network
SLC 5/05 Performance
Considerations
Publication 1747-UM011C-EN-P - December 2001
The SLC 5/05 supports Ethernet communication via the Ethernet
communication channel 1 shown in the drawing below.
Actual performance of an SLC 5/05 processor varies according to:
• size of Ethernet messages
• frequency of Ethernet messages
• network loading
• the implementation of and performance of your processor
application program
Optimal Performance: PC to SLC 5/05 Processor (2-node Ethernet network)
Operation Words MSG per Second ms per
Single Typed Read 1
Single Typed Reads 20
Single Typed Reads 100
SLC 5/05 CPU
RUN
FORCE
FLT ENET
BATT
RS232
RUN REM PROG
Channel 1
Ethernet
(10Base-T)
Channel 0
RS-232
(DH485, DF1,
or ASCII)
MSG
140 281
138 287
129 312
Words per Second
140
2760
12,900