User's Manual

65
RFID System
User's Manual
Section 5 Timing Charts
Section 5
I/O Settings and Control Methods
Auto Mode (500 ms Output Time)
The timing chart for Auto Mode with a 500-ms output time is shown in the following figure.
 Mode Switch Settings 0 to 2 (4-byte, 26-byte, and 58-byte Access Mode)
A: The PLC turns ON INHIBIT, and sends the execution command to the DeviceNet Remote ID
Controller.
B: The DeviceNet Remote ID Controller checks that INHIBIT
is ON, determines the CMD (command),
LEN (data length), and ADDR (start address), and then turns ON BUSY.
C: The DeviceNet Remote ID Controller starts communications with an ID Tag when one enters the
Antenna's communications range.
D: The DeviceNet Remote ID Controller turns ON NORM when communications with the ID Tag ends
normally.
E: The ID Tag moves out of the Antenna's communications range.
F: The DeviceNet Remote ID Controller waits for the ID Tag to leave the Antenna's communications
range, and then turns OFF the result output 500 ms afterward.
G: The DeviceNet Remote ID Controller starts communications with the ID Tag when one enters the
Antenna's communications range.
H: The DeviceNet Remote ID Controller turns ON NORM when communications with the ID Tag ends
normally.
I: The DeviceNet Remote ID Controller waits for the ID Tag to move outside the Antenna's
communications range, and then turns ON the result output 500 ms afterward.
J: The PLC sets INHIBIT
to 0 (OFF) to prevent command execution by the DeviceNet Remote ID
Controller.
K: The DeviceNet Remote ID Controller confirms that INHIBIT
is OFF, and then turns OFF BUSY.
Communications
Range
ID Tag
INHIBIT
RUN
BUSY
NORM
ERR
ERR_SUB
ID
Communications
Range
500 ms
500 ms
A
B
C
D
E
F
G
H
I
J
K
L