Omron V680 Series User Manual page 320

Section 11
Appendices
 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-D8KF68
V680S-HMD64-ETN and V680S-D8KF68
horizontally
V680S-HMD64-ETN and V680S-D8KF68
vertically
V680S-HMD66-ETN and V680S-D8KF68
horizontally
V680S-HMD66-ETN and V680S-D8KF68
vertically
 Measurement Conditions
• V680S-HMD64-ETN and V680S-D8KF68
Horizontally
Non-metallic material
• V680S-HMD66-ETN and V680S-D8KF68
Horizontally
Metallic material
Non-metallic material
RFID System
318
User's Manual
(Modbus TCP)
0
0%
0%
0%
0%
Metallic material
RF Tag
Reader/Writer
RF Tag
Reader/Writer
RF Tag inclination
10 20 30 40 50
-1% -2% -3% -5% -9%
-1% -3% -5% -8% -13%
-1% -2% -3% -6% -11%
-1% -2% -5% -8% -14%
• V680S-HMD64-ETN and V680S-D8KF68
Vertically
Non-metallic material
• V680S-HMD66-ETN and V680S-D8KF68
Vertically
Metallic material
Non-metallic material
(θ°)
60 70 80 90
-14% -21% -32% -58%
-19% -28% -41% -65%
-16% -25% -39% ---
-20% -29% -43% -69%
Metallic material
RF Tag
Reader/Writer
RF Tag
Reader/Writer