User guide

DATA-LINC GROUP
11
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
mA
13.7
mA
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