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

G3 RS232 to a PC

Connections

G3: RJ12

Name

PC: DB9

Name

4

COMM

1

DCD

5

Tx

2

Rx

2

Rx

3

Tx

N/C

4

DTR

3

COMM

5

GND

N/C

6

DSR

1

CTS

7

RTS

6

RTS

8

CTS

N/C

9

RI

RS422/485 COMMS PORT

The G310 has one isolated RS422/485 port. 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

CBLPROG0

ICM5

CONNECTING A G310 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

Connections

G3: RJ45

Name

RLC: RJ11

Name

5

TxEN

2

TxEN

6

COMM

3

COMM

1

TxB

5

B-

2

TxA

4

A+

G3 to Modular Controller (CBLRLC05)

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

COMM

6

COMM

7

TxB

7

TxB

8

TxA

8

TxA

DH485 COMMUNICATIONS

The G310’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)

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

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