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2-1 Read/Write Antenna Model V690-HMG01
2-2
2-1-3 Signal of Supplied Connector
2-1-4 Indicator
(1) The items below can be checked through the antenna indicator.
P (Power):
Turns on when 24 VDC power is being supplied to the antenna.
C (Carrier):
Turns on when the antenna is emitting a radio wave.
H (Host):
Turns on when the antenna is sending data to a host device.
T (Tag):
Turns on when the antenna is sending data to a tag.
(2) By enabling the setting mode, you can check the communication range to a tag without connecting to a host device. Refer to Section
3-4.
(3) If an operation fails, troubleshoot those indicators which turn on or blink. Refer to Section 6-2.
Item
Symbol
Pin Number
Usage
Power supply
+24V
A
Supply 24 VDC.
0V
B
Setting
+P
C
Short-circuit at the setting mode. Refer to Section 5-1.
Do not connect at the operation mode
-P
D
RS-422A RD
(Receiving)
RD+
E
Use for the communication in RS-422A.
(Terminating resistance 220
Ω
is con-
nected to both of RD and SD in the
antenna.) Do not connect when RS-
232C is used.
RD-
F
RS-422A SD (Send-
ing)
SD+
SD-
G
H
RS-232C Receiving
Rx
J
Use for the communication in RS-232C.
Do not connect when RS-422A/485 is
used.
RS-232C Sending
Tx
K
RS-232C Signal 0V
SG
L
Frame ground
GR
M
Ground according to Class D.
Indicator
P (Red)
C (Red)
H (Red)
T (Red)
Meaning
Power supply
Radio wave emission
Host transmission
Tag transmission
Correct Usage
Do not disassemble it nor touch the inside when the power supply turns on. Otherwise, trouble
may be caused.
Pin Layout