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30
Sec
tion 2
Wiring
RFID System
Operation Manual
Section 2
Installation and Wiring
RS-422/RS-485 Port
Pin Arrangement
■
Connecting to the Host Device
■
RS-422 Connection
The +/
polarity designations for the SDA, SDB, RDA, and RDB signals are reversed on some devices. Always check
the signal names of the connected device and connect the polarity correctly.
■
RS-485 Connection
The internal circuits are as follows:
Pin No.
Name
Description
1
RDA(
)
Receive data
2
RDB(+)
Receive data
3
SDA(
)
Send data
4
SDB(+)
Send data
5
SG
SG
*Using RS-485 is possible by shorting pins 1 and 3 and
pins 2 and 4, and changing the setting to RS-485.
Note. Ground the shield at the host device to prevent malfunctions.
Note. Short pins 1 and 3 and pins 2 and 4 Do not connect
anything to the ID Controller's SG.
Pin No.
1
2
3
4
5
• Pin Arrangement
ID Controller
Host device
(Shield)
RDA(
)
RDB(
)
SDA(
)
SDB(
)
SG
SDA(
)
SDB(
)
RDA(
)
RDB(
)
SG
GR
ID Controller
RDA(
)
RDB(
)
SDA(
)
SDB(
)
SG
Host device
Receiving side
terminating resistance
Sending side
terminating resistance
RDA(
) RDB(
) SDA(
) SDB(
) SG
Terminating resistance: RS-422: 220
, RS-485: 110
Note: Turn ON the terminating resistance at the nodes on both ends of the main cable.
Turn OFF the terminating resistance at all other nodes. Normal transmissions will not
be possible if the terminating resistance is ON at any node other than the end nodes.
Summary of Contents for V600 Series
Page 50: ...48 Section 2 Wiring RFID System Operation Manual Section 2 Installation and Wiring MEMO ...
Page 72: ...70 Section 4 Write Command Memory RFID System Operation Manual Section 4 Function ...
Page 138: ...136 Section 5 End Codes RFID System Operation Manual Section 5 Communications MEMO ...