Data-Linc Group PLR5000 Guia do Utilizador descarregar pdf (Página 13)

DATA-LINC GROUP

PLR580D / DA User Guide

PN 161-09889-001B

rev 3/2005 ver 6.33c

Point-to-Multipoint Analog Operation

A system is to be built where one analog input exist at one remote and one at another. The maximum possibility of master

outputs is eight, so this is a valid configuration. Remote 0 being the first remote in the Master’s poll list will be assigned

Master output one. Remote 1 being next in the poll list will be Master output two.

Figure 8: Point-to-Multipoint Analog Example

Pwr

4-20mA Input

4-20mA Output

G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8

Pwr

4-20mA Input

4-20mA Output

G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8

13.7

Sensor

with 4 -20 mA

Output

Pwr

4-20mA Input

4-20mA Output

G 1 2 3 4 5 6 7 8G 1 2 3 4 5 6 7 8

Sensor

with 4 -20 mA

Output

Output from Remote 0

Output from Remote 1

Master

Remote 0

Remote 1

Note: A loop power supply may be

needed. The PLR580DA units do not

supply loop power.

Note: A loop power supply may be

needed. The PLR580D units do not

supply loop power.

*** Systems with only one

analog input on each remote

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Data-Linc Group PLR5000 Guia do Utilizador Página 13