314
RF Tag Installation Precautions
Section 11
RFID System
User's Manual
(Modbus TCP)
Section 11
Appendices
Mutual Interference of RF Tags
If you use more than one RF Tag, separate them by at least the interval shown below to prevent
malfunctions due to mutual interference.
If the distance between the RF tags is too short, read / write distance will be reduced.
V680S-HMD64-ETN Reader/Writer
V680S-HMD66-ETN Reader/Writer
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-D2KF68M
RF Tag inclination (θ°)
0 10 20 30 40 50 60 70 80 90
V680S-HMD64-ETN and V680S-D2KF68M
horizontally
0% 0% -1% -3% -5% -9% -17% -32% --- ---
V680S-HMD64-ETN and V680S-D2KF68M
vertically
0% -2% -4% -7% -12% -19% -31% -51% --- ---
V680S-HMD66-ETN and V680S-D2KF68M
horizontally
0% -1% -2% -4% -8% -13% -23% -43% --- ---
V680S-HMD66-ETN and V680S-D2KF68M
vertically
0% -1% -4% -7% -12% -21% -33% -58% --- ---
100 mm min.
100 mm min.
100 mm min.
100 mm min.
130 mm min.
130 mm min.
120 mm min.
120 mm min.
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