Foxboro FBM223 PROFIBUS-DP™ Communication Interface Module

FBM223 PROFIBUS-DP™ Communication Interface Module

The FBM223 PROFIBUS-DP™ Communication Interface Module provides an interface between

PROFIBUS-DP slave devices and the I/A Series® system.

FEATURES

Key features of the FBM223 module are:

Conforms to PROFIBUS-DP Fieldbus

specifications

Provides full support for all device variables and

diagnostic messages

Integrates PROFIBUS slave device data into an

I/A Series control database

The FBM223 and its associated termination

assembly (TA) are suitable for installation in

Class 1. Division 2 and Zone 2 locations.

OVERVIEW

The PROFIBUS-DP Communication Interface Module

(FBM223) provides an interface between

PROFIBUS-DP slave devices — such as motor

drives, I/O modules, and field I/O devices — and the

I/A Series system.

PROFIBUS is a vendor-independent, open fieldbus

standard for a wide range of applications in process

automation and manufacturing.  Vendor

independence and openness are guaranteed by the

PROFIBUS Fieldbus standard EN 50170. which

specifies the functional, electrical, and mechanical

characteristics for a serial transmission bus.

Physical PROFIBUS-DP wiring is in accordance with

Electronic Industrial Association (EIA) standard RS

485.

In addition to the general PROFIBUS-DP

configuration shown in Figure 1. several other

configurations are possible, including those using

repeaters and intrinsic safety protective devices.

Figure 2 shows how a bus can be expanded into

multiple segments through the use of repeaters, thus

providing support for a greater number of slave

devices.

FBM223 communicates with the PROFIBUS I/O

devices on a master/slave basis.  As master, the

FBM223 initializes each data communication

exchange.  The slave devices can only acknowledge

received messages, or send messages to the master

when requested to do so.

PROFIBUS-DP TECHNOLOGY

“DP” (in PROFIBUS-DP) represents the

communication profile that is most often used with

PROFIBUS — decentralized periphery. It is optimized

for speed, efficiency, and low connection cost, and is

designed especially for communication between

automation systems (such as the I/A Series control

system) and distributed field devices.