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Communicating with the fieldbus gateway, Configuring a fieldbus gateway, Cables and drivers – B&B Electronics VFG1000 - Quick Start Guide User Manual

Page 6: Usb, data transfers from the compactflash card, Ethernet communications, Rs232 ports, Dh485 communications

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CONFIGURING A FIELDBUS GATEWAY

The Fieldbus Gateway is configured using Fieldbus Gateway Manager

software. Updates to the software for new features and drivers are posted on the

website as they become available. By configuring the Fieldbus Gateway using

the latest version of the software, you are assured that your unit has the most up

to date feature set. The software can configure the Fieldbus Gateway through

the RS232/PG port, USB/PG port, Ethernet, or CompactFlash. The USB/PG

port is connected using a standard USB cable with a Type B connector.

The driver needed to use the USB port will be installed with the software.

The RS232/PG port uses a programming cable made by B&B to connect to the

DB9 COM port of your computer. If making your own cable, refer to the

“Fieldbus Gateway Port Pin Outs” for wiring information.

The CompactFlash can be used to program a Fieldbus Gateway by placing a

configuration file and firmware on the CompactFlash card. The card is then

inserted into the target Fieldbus Gateway and powered.

CABLES AND DRIVERS

B&B has a wide range of cables and drivers for use with many different

communication types. A list of these drivers and cables along with pin outs is

available from B&B’s website. If making your own cable, refer to the “Fieldbus

Gateway Port Pin Outs” for wiring information.

USB, DATA TRANSFERS FROM THE

COMPACTFLASH CARD

In order to transfer data from the CompactFlash card via the USB port, a

driver must be installed on your computer. This driver is installed with the

software and is located in the folder C:\Program Files\B&B Electronics\Vlinx

Fieldbus Gateway Manager\Device after the software is installed. This may

have already been accomplished if your Fieldbus Gateway was configured

using the USB port.

Once the driver is installed, connect the Fieldbus Gateway to your PC with a

USB cable, and follow “Mounting the CompactFlash” instructions in the

Fieldbus Gateway Manager user manual.

Note: The USB port is for system set-up and diagnostics and is not intended for

permanent connection.

ETHERNET COMMUNICATIONS

Ethernet communications can be established at either 10 BASE-T or 100

BASE-TX. The Fieldbus Gateway’s RJ45 jack is wired as a NIC (Network

Interface Card). For example, when wiring to a hub or switch use a straight-

through cable, but when connecting to another NIC use a crossover cable.

The Fieldbus Gateway Manager manual contains additional information on

Ethernet communications.

RS232 PORTS

The Fieldbus Gateway has two RS232 ports. There is the RS232/PG 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/PG port can be used for either master or slave protocols.

RS422/485 PORT

The Fieldbus Gateway has one RS422/485 port. This port can be configured

to act as either RS422 or RS485.

Note: All B&B devices connect A to A and B to B.

DH485 COMMUNICATIONS

The Fieldbus Gateway’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 B&B.

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

COMMUNICATING WITH THE Fieldbus Gateway

WARNING - DO NOT CONNECT OR DISCONNECT CABLES

WHILE POWER IS APPLIED UNLESS AREA IS KNOWN TO BE

NON-HAZARDOUS. USB PORT IS FOR SYSTEM SET-UP AND

DIAGNOSTICS AND IS NOT INTENDED FOR PERMANENT

CONNECTION.