Specifications

App - 1 App - 1
APPENDICES
250
200
150
400
350
300
100
50
200 40 60 80 100 120 140
Number of Bytes (bytes)
ms
Communication Time
Read
Write (with verify)
Write
(without verify)
APPENDICES
APPENDIX 1 COMMUNICATION TIME (REFERENCE)
The following describes the communication time between the RFID interface module
and ID tag, according to ID tag type.
For suitable ID tag and antenna combinations, refer to the OMRON RFID system V680
series manual.
(1) EEPROM type (1kbyte): V680-D1KP
Communication
Speed Setting
Command
Communication Time (ms)
N: Number of Processed Bytes
Standard mode
Read T=1.3×N+31
Write (with verify) T=2.2×N+58
Write (without verify) T=1.9×N+56
High-speed mode
Read T=1.0×N+29
Write (with verify) T=1.8×N+51
Write (without verify) T=1.5×N+47
●Communication Speed: Standard Mode ●Communication Speed: High-speed Mode
250
200
150
400
350
300
100
50
200 40 60 80 100 120 140
Number of Bytes (bytes)
ms
Communication Time
Write (with verify)
Read
Write
(without verify)
250
200
150
400
350
300
100
50
200 40 60 80 100 120 140
Number of Bytes (bytes)
ms
Communication Time
Write (with verify)
Read
Write
(without verify)
(2) FRAM type (2kbytes): V680-D2KF
/V680S-D2KF
Communication
Speed Setting
Command
Communication Time (ms)
N: Number of Processed Bytes
Standard mode
Read T=1.2×N+30
Write (with verify) T=2.6×N+49
Write (without verify) T=1.3×N+49
High-speed mode *
1
Read T=0.9×N+27
Write (with verify) T=1.9×N+49
Write (without verify) T=0.9×N+49
*1. When FIFO trigger or FIFO repeat is specified in the communication specification area,
the communication time becomes the standard mode communication time, even if the ID
tag communication speed setting is high-speed mode.
●Communication Speed: Standard Mode ●Communication Speed: High-speed Mode
App
250
200
150
400
350
300
100
50
200 40 60 80 100 120 140
Number of Bytes (bytes)
ms
Communication Time
Write (with verify)
Read
Write
(without verify)
App - 1