Omron V680S-HMD63-ETN User Manual page 275

RF Tag Installation Precautions
V680-D1KP54T
 Effect of Metal behind RF Tags
The communications range will decrease if there is metal at the back of the V680-D1KP54T RF Tag.
The V700-A80 Attachment is 8 mm thick. 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.
The V700-A80 Attachment is 8 mm thick.
V680S-HMD63-ETN and V680-D1KP54T
(%)
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40
Distance (x) to the metal plate in back of RF Tag
Reader/Writer
Metal
Non-metallic material
V680S-HMD66-ETN and V680-D1KP54T
(%)
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40
Distance (x) to the metal plate in back of RF Tag
Reader/Writer
Metal
Non-metallic material
50 60 70 80 90 100 110 (mm)
RF Tag
Metal on back
Y
Communications
range
X
50 60 70 80 90 100 110 (mm)
RF Tag
Metal on back
Y
Communications
range
X
V680S-HMD64-ETN and V680-D1KP54T
(%)
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40 50 60 70
Distance (x) to the metal plate in back of RF Tag
Reader/Writer
Y
Communications
range
Metal
Non-metallic material
Section 11
Appendices
80 90 100 110 (mm)
RF Tag
Metal on back
X
RFID System
273
User's Manual
(Modbus TCP)