Timing Charts - Omron V680-HAM91 User Manual

Section 5
Control I/O Interface

Timing Charts

Trigger Mode 1: Read
Mode setting switch settings
Access Address : 0010 hex
A. Preparations
Normal Completion of Communications with RF Tag
B. Start of communications
C. End of communications
D. Clearing results
Error Completion of Communications with RF Tag
E. Start of communications
F. End of communications
G. Clearing results
• Wait at least 10 ms after switching the R/W input line before performing next process.
• Switch the address shift input (ADR0 to ADR2) at least 10 ms before accessing the RF Tag(e.g., at least 10 ms before turning
ON the trigger input).
• Read the data output (OD0 to OD15) after the NORMAL/STRB output turns ON.
RFID System
56
User's Manual
In communications range
RF Tag position
INHIBIT/TRIG
Communications
with RF Tag
R/W input
Address shift input
0 hex
(ADR0 to 2: 3 bits)
NORMAL/STRB
ERR output
PARITY output
0
NOISE_OUT
output
Data output
0000 hex
(OD0 to OD15: 16 bits)
Data Display LED
0000 hex
(0 to 15: 16 bits)
A
Before starting communications with the RF Tag, turn OFF the R/W input and set the address shift
input bits (ADR0 to ADR2).
Turn ON the INHIBIT/TRIG input to start communications with the RF Tag after confirming the RF
Tag is in the communications area of the Antenna.
If communications with the RF Tag are completed normally, the ID Flag Sensor will turn ON the
NORMAL/STRB output, store the parity value in the PARITY output, and store the read data in the
data output bits (OD0 to OD15). The Data Display LED(0 to 15) corresponding to the read data
will be lit green.
When you turn OFF the INHIBIT/TRIG input, the NORM/STRB output will be turned OFF, the par-
ity value (0) will be set on the PARITY output, and the data output bits (OD0 to OD15) will be
cleared to 0000 hex.
Turn ON the INHIBIT/TRIG input to start communications with the RF Tag.
If communications with the RF Tag are completed with an error(No RF Tag error), the ID Flag Sen-
sor will turn ON "0" the ERR output, store the parity value in the PARITY output, and store the
error code in the data output bits (OD0 to OD15). The data indicators (0 to 15) corresponding to
the error code will be lit red.
When you turn OFF the INHIBIT/TRIG input, the ERR output will be turned OFF "1", the parity
value (0) will be set on the PARITY output, and the Data Display LED (OD0 to OD15) will be
cleared to 0000 hex.
Read-
ing
Address shift data
3 ms
Parity
0
value
Read
0000 hex
data
Read data display (green)
B C
D
Normal completion
Read-
ing
3 ms
Parity
0
value
Error
0000 hex
code
Error code display (red)
E G
F
Completion with error