40
SECTION 2
Connection and Wiring
RFID System
User’s Manual
SECTION 2
Installation, Connections, and Wiring
RS-422 Connection to Host Device
Refer to RS-422 Connections for information on RS-422 connections between the host device and ID Controllers.
p. 38
If the first communications received by an ID Controller are via the RS-232C interface, reception of RS-422/RS-485
communications will be prohibited. If the first communications are received via RS-422/RS-485, reception of RS-232C
communications will be prohibited. Therefore, when changing the system configuration of an ID Controller, always turn
OFF the power supply before changing the connections.
RS-485 Connection to the Host Device
Note: Short-circuit terminals 1 and 3, and 2 and 4 to use RS-485 communications.
Refer to RS-485 Connections for information on RS-485 connections between the host device and ID Controllers.
p. 38
If the first communications received by an ID Controller are via the RS-232C interface, reception of RS-422/RS-485
communications will be prohibited. If the first communications are received via RS-422/RS-485, reception of RS-232C
communications will be prohibited. Therefore, when changing the system configuration of an ID Controller, always turn
OFF the power supply before changing the connections.
RS-422 RS-422RS-422
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
RS-422
Host device
(terminating
resistance
connected)
Total length: 500 m max.
SW 6: ON
(terminating
resistance)
SW 6: OFF
(no terminating
resistance)
ID Controller
Pin No.
Symbol
SW 6: OFF
(no terminating
resistance)
SW 6: OFF
(no terminating
resistance)
ID Controller
ID Controller
ID Controller
Pin No.
Symbol
Pin No.
Symbol
Pin No.
Symbol
ID ControllerID Controller
RS-485
ID Controller
RS-485
ID Controller
RS-485
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
1 RDA(−)
2 RDB(+)
3 SDA(−)
4 SDB(+)
5SG
RS-485
Host device
(terminating
resistance
connected)
Total length: 500 m max.
SW 6: ON
(terminating
resistance)
SW 6: OFF
(no terminating
resistance)
Pin No.
Symbol
SW 6: OFF
(no terminating
resistance)
SW 6: OFF
(no terminating
resistance)
Pin No.
Symbol
Pin No.
Symbol
Pin No.
Symbol
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