User's Manual

RFID System
User's Manual
101
Section 6 Characteristics
Section 6
Appendices
Communications Time
The communications time is the time required for communications between the Antenna and the ID
Tag. The communications time of the DeviceNet Remote ID Controller is longer when data is being
written.
 Communications Time Specifications
 ID Tag Travel Speed
The travel time (i.e., conveyor speed) of an ID Tag on the line can be calculated by finding the
communications area and communications time for the I/O Sensor ID.
 Data Read Calculation Example
Model V680-HAM91/V680-HAM81
Read Write
Function Data write mode
Verify read mode
Byte mode
Bit set mode
Bit clear mode
ID Tag
type
EEPROM type zz ms zz ms zz ms
FRAM type zz ms zz ms zz ms
Note 1: The travel speed depends on communications distance Y and axis offset. It is recommended to refer to the
communications area diagram and use the part with the widest area.
2. These values are guidelines. Perform testing with the actual device before operation.
3. Processing for communications errors is not included in this formula.
ID Tag travel speed (i.e., conveyor speed) =
Communications time
Travel distance (x) in communications area
ID Tag travel speed (m/min.) =
▲▲ (ms)
zz (mm)