Omron V680S Series User Manual

Section 8
Data Characteristics
RF Tag Communications Time (for Reference Only)
■ Communications Time
Communications time is from the rise of the RF signal to the last bit of the response from the RF tag.
The communication time is approximately 200ms longer when enabling Communications Diagnosis function.
V680S-HMD6-EIP and V680-D1KP
There are no differences between Communication speed: “normal” and “high”.
V680S-HMD6-EIP and V680-D8KF6
There are no differences between Communication speed: “normal” and “high”.
RF signal : The radio wave that the Reader/Writer turns ON the RF Tag.
The Reader/Writer turns ON this RF signal and then sends the command to start communications with the RF tag.
When the communications end, the Reader/Writer turns OFF the RF signal
Command : The command that the Reader/Writer sends to the RF Tag.
Response : The response that the RF Tag returns to the Reader/Writer.
Command Communications time (ms)
N: No. of bytes processed
Read T= 1.0N + 20.1
Write (with verification) T= 1.8N + 45.2
Write (without verification) T= 1.5N + 41.4
Command Communications time (ms)
N: No. of bytes processed
Read T= 1.0N + 19.7
Write (with verification) T= 1.3N + 38.1
Write (without verification) T= 1.0N + 34.3
Command Response
RF signal
Communications time
0
0 50 100 150 200 250 300
No. of bytes (byte)
Communications time (ms)
50
100
150
200
250
300
350
450
400
Write (without verification)
Read
Write (with verification)
No. of bytes (byte)
Communications time (ms)
0
0 50 100 150 200 250 300
50
100
150
200
250
300
350
450
400
Write (with verification)
Write (without verification)
Read

Omron V680S Series Specifications

General

Brand	Omron
Model	V680S Series
Category	Rfid Systems
Language	English