Omron V680S-HMD63-ETN - Page 315

RF Tag Installation Precautions
Section 11
Section 11
Appendices
313
RFID System
User's Manual
(Modbus TCP)
V680S-D8KF68
 Influence of Metal at Back Surface of RF Tags
The communications range will decrease if there is metal at the back of the V680S-D8KF68 RF Tag. If
the RF Tag is mounted on metallic material, use a non-metallic spacer (e.g., plastic or resin). The
following graphs show the relationship between the distance from the RF Tag to the metallic surface
and the communications range.
X
Y
Communications
range
X
Y
Communications
range
Reader/Writer
RF Tag
Metal
Non-metallic material
Metal at back surface
V680S-HMD64-ETN and V680S-D8KF68 V680S-HMD66-ETN and V680S-D8KF68
Metal
Non-metallic material
Metal at back surface
Reader/Writer
RF Tag
0
10
20
30
40
50
60
70
80
90
100
50 100 150 (mm)
(%)
Communications range (range with no metal at back surface = 100%)
Distance (x) to the metal plate in back of RF Tag
0
10
20
30
40
50
60
70
80
90
100
100 200 300 (mm)
(%)
Communications range (range with no metal at back surface = 100%)
Distance (x) to the metal plate in back of RF Tag