Moore Industries WLM, Руководство по установке

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24 The Interface Solution Experts
WLM
Sample Data Communication Links
The WLM’s versatility allows data communication links to be established using a variety of different configurations.
This, in turn, makes it possible to extend the range of the WLM and get around obstacles.
Diagram 3 shows the most common and straightforward link, a master communicating to a remote in a dedicated link.
Diagram 3
Diagram 4 depicts how a link might be set up using a repeater. The repeater may be sitting on a hilltop or other
elevated structure to link the master to the remote. In this setup it may be desirable to use an external omni
directional antenna on the repeater; to extend the range Yagi antennas could be used on either or both of the master
and remote.
Diagram4
When a repeater is used the throughput is cut in half. Adding a second (or more) repeater does not further reduce the
throughput, however it does increase the latency.
SLC5/0X CPU
FORCE
RS232
RUN
FLT
BATT
RUN REM PROG
Workstation
Workstation
Point-to-Point
Master
Point-to-Point
Repeater
Point-to-Point
Remote