Examples of rs485 2-wire connections, Dh485 communications, G3 to modular controller (cblrlc05) – Red Lion G308 G308A 8.4" TFT and G308C 7.7 DSTN Color Touch Panels" User Manual
Page 5: Power supply isolation block diagram (g308a2 only)
RS422/485 COMMS PORT
The G308 has one RS422/485 port. The G308A port is isolated, while the
G308C port is not isolated. This port can be configured to act as either RS422
or RS485.
Note: All Red Lion devices connect A to A and B to B, except for Paradigm
devices. Refer to www.redlion.net for additional information.
5
OFF 4 WIRE/ ON 2 WIRE
OFF 4 WIRE/ ON 2 WIRE
*
*
*
*
*
*
* * *
*
9
PULL
UP
PULL
DOWN
1
1
5200 BAUD
57600 BAUD
38400 BAUD
19200 BAUD
9600 BAUD
2
1
5
3
4
7
8
6
OFF DCE/ ON DTE
OFF DCE/ ON DTE
OFF DTE/ ON DCE
OFF 422/ ON 485
OFF 422/ ON 485
OFF DTE/ ON DCE
120
Ω
TERMINA
TION
5
NC
10
1
3
2
4
6
7
ON
ON
CBLPROG0
ICM5
*
CONNECTING A G308 OPERATOR
INTERFACE TO AN ICM5
Application Dependent
ICM5 DIP Switch Settings
Examples of RS485 2-Wire Connections
G3 to Red Lion RJ11 (CBLRLC00)
DLC, IAMS, ITMS, PAXCDC4C
A+
4
TxA
2
B-
5
TxB
1
COMM
3
COMM
6
TxEN
2
TxEN
5
Name
RLC: RJ11
Name
G3: RJ45
Connections
G3 to Modular Controller (CBLRLC05)
TxA
8
TxA
8
TxB
7
TxB
7
COMM
6
COMM
6
TxEN
5
TxEN
5
RxA
TxA
3,2
2,3
RxA
TxA
3,2
2,3
RxB
4,1
RxB
4,1
TxB
1,4
TxB
1,4
Name
Modular Controller
Name
G3
Connections
DH485 COMMUNICATIONS
The G308’s RS422/485 COMMS port can also be used for Allen Bradley
DH485 communications.
WARNING: DO NOT use a standard DH485 cable to connect this port to Allen
Bradley equipment. A cable and wiring diagram are available from Red Lion.
G3 to AB SLC 500 (CBLAB003)
24V
-
TxA
3, 8
COMM
-
TxB
4, 7
SHIELD
4
COMM
6
TxEN
5
TxEN
5
COMM
-
RxB
4, 7
24V
-
RxA
3, 8
B
2
TxA
2
A
1
TxB
1
Name
RJ45: A-B
Name
RJ45: RLC
Connections
TX
5V
8
1
7
2
TxB
TxA
130K
130K
5
TxEN (OC)
RX
130K
5V
130K
RxB
4
RxA
3
GND
6
TxEN (OC)
TX/RX
130K
5
TxA
2
8
130K
5V
7
1
TxB
6
GND
RS422/485 4-WIRE
CONNECTIONS
RS485 2-WIRE
CONNECTIONS
ISOLATED
ETHERNET
AUXILIARY
ISOLATED
RS232
PORT B
E
F
ETHERNET
ISOLATED
D
B
C
A
HOST B
A
PGM PORT
ISOLATED
RS232
PORT A
ISOLATED
-
+
24VDC
SUPPLY
PORT A
RS485
A
POWER
PROGRAMMING
HOST A
A
USB DEVICE
POWER SUPPLY ISOLATION BLOCK DIAGRAM
(G308A2 ONLY)