Rf Tag Communications Time (For Reference Only) - Omron V680S-HMD64-PNT User Manual

Section 11
Appendices

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.
RF signal
RF signal
Command
Response
The communication time is approximately 200ms longer when enabling Communications Diagnosis function.
V680S-HMD6-PNT and V680-D1KP
There are no differences between Communication speed: "normal" and "high".
Command
Read
Write (with verification)
Write (without verification)
RFID System
248
User's Manual
(PROFINET)
Command
Communications time
: 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
: The command that the Reader/Writer sends to the RF Tag.
: The response that the RF Tag returns to the Reader/Writer.
Communications time (ms)
N: No. of bytes processed
T= 1.0N + 20.1
T= 1.8N + 45.2
T= 1.5N + 41.4
Response
600
550
500
Write (with verification)
450
400
350
300
250
200
150
100
50
0
0 50 100 150
No. of bytes (byte)
Write (without verification)
Read
200 250 300