Omron V680 Series User Manual page 287

 Influence of Inclination
Install the Reader/Writer and RF Tags so that the Reader/Writer and RF Tags are as parallel to each
other as possible.
Communications will be possible even if the Reader/Writer and RF Tags are not parallel to each other;
however, the communications range is affected by the inclination between them as shown in the
following graphs.
 Rates of Change in Communications Range for Inclination of V680-D1KP54T
V680S-HMD63-ETN and V680-D1KP54T
V680S-HMD64-ETN and V680-D1KP54T
V680S-HMD66-ETN and V680-D1KP54T
 Measurement Conditions
• V680S-HMD6-ETN and V680-D1KP54T
Metallic material
Non-metallic Reader/Writer
material
• V680S-HMD66-ETN and V680-D1KP54T
Metallic material
Non-metallic material
Reader/Writer
RF Tag inclination
0 10 20 30
0% 0% -2% -5%
0% -1% -3% -6%
0% -1% -3% -6%
• V680S-HMD64-ETN and V680-D1KP54T
RF Tag
Non-metallic material
RF Tag
Section 11
Appendices
(θ°)
40 50 60 70
-9% -14% -21% -32% -49%
-12% -19% -29% -43% -70
-11% -18% -27% -42% -67
Metallic material
Reader/Writer
RFID System
User's Manual
(Modbus TCP)
80 90
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RF Tag
285