User guide

DATA-LINC GROUP
3
PLR580D / DA User Guide
PN 161-09889-001B
rev 3/2005 ver 6.33c
Introduction
The PLR580D / PLR580DA are discrete/analog signal multiplexers. They are designed to provide wireless communication
where wire lengths are too long, too costly or not possible. In general, these units behave as if they replace a set of wires
between the two or more locations. These units are normally factory configured and eliminate the necessity of having to
preset the system configurations. The units are ready for installation into the system upon receipt. If the system changes,
these units do have the capability to be field reconfigured and to have access to the radio setup parameters using jumper
settings and a serial cable to a PC.
Two version of the product exist. The PLR580DA has both analog and discrete inputs and outputs. The PLR580D has only
the discrete inputs and outputs. Discrete (digital) connections and operations are the same for both of the models. Only the
PLR580DA has 4-20 mA inputs and outputs. Both the PLR580D and PLR580DA have distinct master and remote units.
Each system must have one and only one master and can have up to 8 Remotes.
Both the PLR580D and PLR580DA take an input at one end and reproduce it at the other end. The Master unit has a
possible total of 8 discrete inputs, 8 discrete relay drive outputs. The Master has eight 4-20 mA inputs and eight 4-20 mA
outputs. When designing a system that use these units, keep in mind that if using more than one remote (8 possible) that
the Master unit can never have more that 8 digital-in, 8 digital-out, 8 analog-in, and 8 analog-out.
Communication is accomplished using radio transmissions. A six inch unity gain whip antenna is supplied with each unit
for test purposes. Note that line of sight is required for communications. In some instances, under 1/2 mile (.80 km), line of
sight may not be necessary. If line of sight does not exist or the units are to be mounted into grounded metal enclosures,
an external antenna may be needed. If external antennas were not purchased with this equipment, contact Data-Linc Group
for information.
Figure 1: PLR580D and PLR580DA