1–2
SLC 5/05 Ethernet Processor Features
Publication
1747-10.4
SLC 5/05 (1747-OS501, FRN 3) processors support
RS232-to-Ethernet channel-to-channel passthru. See Chapter 5 for
more information on using the new passthru feature.
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: SLC 5/05 to SLC 5/05 Processor
(2-node Ethernet network)
Operation
Words
MSG per
second
ms per
MSG
Words per
second
Single
1 33 30.8 33
Typed reads
20 32 31.1 640
100 32 31.2 3200
The figure below shows some of the hardware components of the
SLC 5/05 processors (1747-L551, 1747-L552, and 1747-L553).
Left Side View Front View
Location of Serial and
Catalog Numbers
Memory Module
Keyswitch
Battery
(Battery Provides
Back-up Power for
the CMOS RAM)
SLC
5/05 CPU
RUN PROG
FORCE
RS232
BATT
ENET
FLT
RUN
REM
Channel 1
Ethernet
(10Base-T)
Channel 0
RS232
(DH485,
DF1, or
ASCII)
Operating System
Memory Module
Download Protection
Jumper
Hardware
Address
xx:xx:xx
Write-on
Area for
IP
Address
IP
ADDRESS
_______ . _______ . _______ . _______
Passthru Feature
SLC 5/05 Performance
Considerations
Hardware Features
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