Omron V680 Series User Manual page 323

 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 V680S-D8KF68M
V680S-HMD64-ETN and V680S-D8KF68M
horizontally
V680S-HMD64-ETN and V680S-D8KF68M
vertically
V680S-HMD66-ETN and V680S-D8KF68M
horizontally
V680S-HMD66-ETN and V680S-D8KF68M
vertically
 Measurement Conditions
• V680S-HMD64-ETN and V680S-D8KF68M
Horizontally
Metallic material
Non-metallic material
Reader/Writer
• V680S-HMD66-ETN and V680S-D8KF68M
Horizontally
Metallic material
Non-metallic material
Reader/Writer
RF Tag inclination
0 10 20 30
0% -1% -1% -3%
0% -1% -3% -7%
0% -1% -2% -4%
0% -1% -4% -8%
• V680S-HMD64-ETN and V680S-D8KF68M
Vertically
RF Tag
Non-metallic material
• V680S-HMD66-ETN and V680S-D8KF68M
Vertically
RF Tag
Metallic material
Non-metallic material
Section 11
Appendices
(θ°)
40 50 60 70
-5% -9% -16% -29%
-12% -19% -30% -52% -56%
-8% -13% -24% -50%
-13% -22% -35% -67%
Metallic material
Reader/Writer
Reader/Writer
RFID System
User's Manual
(Modbus TCP)
80 90
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RF Tag
RF Tag
321