RS232 PORTS
The G306A has two RS232 ports. There is the PGM port and the COMMS
port. Although only one of these ports can be used for programming, both ports
can be used for communications with a PLC.
The RS232 ports can be used for either master or slave protocols with any
G306A configuration.
Examples of RS232 communications could involve another Red Lion product
or a PC. By using a cable with RJ12 ends on it, and a twist in the cable, RS232
communications with another G3 product or the Modular Controller can be
established. Red Lion part numbers for cables with a twist in them are
CBLPROG0
1
, CBLRLC01
2
, or CBLRC02
3
.
G3 to Modula
Controlle
(CBLRLC05)
G3 RS232 to a PC
RS422/485 COMMS PORT
The G306A has one RS422/485 port. This port can be configured to act as
either RS422 or RS485.
RS422/485 4-WIRE
CONNECTIONS
RS485 2-WIRE
CONNECTIONS
5V
5V
130K
130K
7
7
TxB
TxB
1
1
TX
TX/RX
8
8
TxA
TxA
130K
130K
2
2
ICM5
5 TxEN (OC)
CONNECTING A G306A OPERATOR
INTERFACE TO AN ICM5
5TxEN (OC)
6GND
5V
130K
4RxB
RX
3RxA
130K
CBLPROG0
6GND
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.
ICM5 DIP Switch Settings
DH485 COMMUNICATIONS
The G306A’s RS422/485 COMMS port can also be used for Allen Bradley
DH485 communications.
Application Dependent
WARNIN
: 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.
1
CBLPROG0 can also be used to communicate with either a PC or an ICM5.
2
DB9 adapter not included, 1 foot long.
3
DB9 adapter not included, 10 feet long.
G3 to
B SLC 500 (CBLAB003)
Examples o
RS485 2-Wire Connections
G3 to Red Lion RJ11 (CBLRLC00)
DLC, IAMS, ITMS, PAXCDC4C
5
*
ON
*
9600
BAUD
1
19200
BAUD
2
38400
BAUD
3
57600
BAUD
4
115200
BAUD
5
PULL
DOWN
6
PULL
UP
7
OFF
4
WIRE/
ON
2
WIRE
8
OFF
4
WIRE/
ON
2
WIRE
9
120
Ω
TERMINATION
10
*
*
*
*
*
*
*
*
OFF
422/
ON
485
1
OFF
422/
ON
485
2
NC
3
OFF
DCE/
ON
DTE
4
OFF
DCE/
ON
DTE
5
OFF
DTE/
ON
DCE
6
OFF
DTE/
ON
DCE
7
*
ON
Connections
G3: RJ45 Name RLC: RJ11 Name
5 TxEN 2 TxEN
6 COM 3 COM
1 TxB 5 B-
2 TxA 4 A+
Connections
RJ45: RLC Name RJ45: A-B Name
1 TxB 1 A
2 TxA 2 B
3, 8 RxA - 24V
4, 7 RxB - COMM
5 TxEN 5 TxEN
6 COMM 4 SHIELD
4, 7 TxB - COMM
3, 8 TxA - 24V
Connections
G3: RJ12 Name PC: DB9 Name
4 COMM 1 DCD
5 Tx 2 Rx
2 Rx 3 Tx
N/C 4 DTR
3 COM 5 GND
N/C 6 DSR
1 CTS 7 RTS
6 RTS 8 CTS
N/C 9 RI
Connections
G3 Name Modular Controller Name
1,4 TxB 1,4 TxB
4,1 RxB 4,1 RxB
2,3 TxA 2,3 TxA
3,2 RxA 3,2 RxA
5 TxEN 5 TxEN
6 COM 6 COM
7 TxB 7 TxB
8 TxA 8 TxA
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