User's Manual

15
Brand of ACOEM
1. SITE SURVEY
RF planning should be considered from the onset in order to determine the sensor locations
and options for the expanders and gateway installation.
In the vast majority of cases, the RF requirements do not impede the installation of the
sensors but by considering the RF implications from the start a very good first-time success
rate is achieved.
The typical link budget calculations that are used in radio planning are not valid in the vast
majority of industrial environments and accurate RF modelling is far too time consuming to
be practical.
For this reason, the RF planning is simply guided by empirical data gathered from a vast
array of previous installations. A set of best practices are presented which are effortless to
follow and delivers reliable performance without the need for calculations or sophisticated
survey equipment.
1.1. SITE PLANNING
The very first step is a site planning for RF (radio frequency).
On a site map:
 Determine and identify the machines that require monitoring with Eagle sensors,
 Determine potential locations for the gateway (allowing connection to the PoE <100m,
power connection <100m).
 Estimate the distance from every Eagle sensor to the gateway after the initial survey and
use the table below to determine whether special precautions need to be taken.
Table 8 : distances for coverage quality
Environment
Simply Works!
Special Precaution
Dense metal structures with no line-of-sight
20m
50m
Sparse metal structures with limited line-of-sight
30m
100m
Line-of-sight
100m
400m
 Identify obstacles that can interfere with radio coverage, sensors in complex areas
(limited space, metal shields) and the most distant sensors.

 des schémas avec plusieurs implantations possibles