Foxboro FBM223 PROFIBUS-DP™ Communication Interface Module

module continues communication over the active

path.

MODULAR BASEPLATE MOUNTING

The module mounts on a Modular Baseplate (see

Figure 3), which accommodates up to four or eight

FBMs.  The Modular Baseplate is either DIN rail

mounted or rack mounted, and includes signal

connectors for the FBMs, redundant independent dc

power connections, and I/O cable connections.

Features

Key features include:

Combination foot that supports 32 or 35 mm DIN

rail mounting

Distinct family group color

Three-tier termination

Switch-selectable termination resistors.

Overview

Field I/O signals connect to the FBM subsystem via

DIN rail mounted termination assemblies (TAs).

Each FBM223 PROFIBUS-DP Termination Assembly

and its associated termination cable provide feed

through connection between PROFIBUS-DP

compliant field devices and the FBM223

PROFIBUS-DP Communication Input Interface

Module.

The TA is available in Polypropylene (PVC) material.

The DIN rail mounted TAs connect to the Modular

Baseplate by means of a removable termination

cable.  The cable is available in a variety of lengths, up

to 30 meters (98 feet), allowing the TA to be mounted

in either the enclosure or in an adjacent enclosure.

Termination cables are available in the following

materials:

Polyurethane

Hypalon® XLP (fire retardant).

Refer to Table 2 on page 11.

FUNCTIONAL SPECIFICATIONS

PROFIBUS-DP Communications

INTERFACE

2 communication channels provide interface to 2

isolated PROFIBUS-DP buses

BUS CHARACTERISTICS

General

Electronic Industrial Association (EIA) RS

485 communications.  The physical

communication medium consists of twisted

pair shielded copper cable containing a

single conductor pair.

Data Transfer Rate (Baud Rate)

Selectable, 9.6 to 12.000 kbit/sec (see

Table 1)

FBM223 CHANNEL ISOLATION

Each communication channel is galvanically isolated

and referenced to earth (ground).  The module can

withstand, without damage, a potential of 600 V ac

applied for one minute between either channel and

earth.

CAUTION

This does not imply that the channels are

intended for permanent connection to

voltages of these levels.  Exceeding the limits

for input voltages, as stated elsewhere in this

specification, violates electrical safety codes

and may expose users to electric shock.

Maximum Allowable Bus Length

The maximum allowable length of a

PROFIBUS-DP bus segment is a function of

the user selected data transfer rate (see

Table 1)

Maximum Cable Length, FBM223 to TA

30 m (90 ft) which is to be included in the

bus segment length

Maximum Number of Devices (Total) on a

Bus

Per EN 50170. for a non-expanded bus

(repeaters not used), one master and up to

31 slaves are supported.  For an expanded

bus, the number of slave devices allowed is

a function of the allowable input/output data

processed per slave device (refer to the

PROFIBUS-DP Communication Interface

Module (FBM223) User’s Guide (B0400FE)).

The maximum number supported per port is

91.

Maximum Number of Devices on a Bus

Segment

Per EN 50170. a bus segment (in an

expanded network) supports up to 32 active

devices.  An active device can be a master,

slave, or repeater.

FASTEST ALLOWED ECB BLOCK PERIOD

500 msec

Conformance to PROFIBUS-DP Standards

PROFIBUS-DP bus topologies and communications

are in accordance with specifications presented in the

following standards:

PROFIBUS Fieldbus standard EN 50170

EIA standard RS-485.

FBM223 Power Requirements

INPUT VOLTAGE RANGE (REDUNDANT)

24 V dc +5%, -10%

CONSUMPTION

6 W (maximum)

HEAT DISSIPATION

6 W (maximum)

FUNCTIONAL SPECIFICATIONS (CONTINUED)

Regulatory Compliance

ELECTROMAGNETIC COMPATIBILITY (EMC)

European EMC Directive 89/336/EEC

Meets:EN 50081-2 Emission standard

EN 50082-2 Immunity standard

EN 61326 Annex A (Industrial Levels)

CISPR 11. Industrial Scientific and

Medical (ISM) Radio-frequency

Equipment - Electromagnetic Disturbance

Characteristics - Limits and Methods of

Measurement

Meets: Class A Limits

IEC 61000-4-2 ESD Immunity

Contact 4 kV, air 8 kV

IEC 61000-4-3 Radiated Field Immunity

10 V/m at 80 to 1000 MHz

IEC 61000-4-4 Electrical Fast

Transient/Burst Immunity

2 kV on I/O, dc power and communication

lines

IEC 61000-4-5 Surge Immunity

2kV on ac and dc power lines;  1kV on I/O

and communications lines

IEC 61000-4-6 Immunity to Conducted

Disturbances Induced by Radio

frequency Fields

10 V (rms) at 150 kHz to 80 MHz on I/O, dc

power and communication lines

IEC 61000-4-8 Power Frequency

Magnetic Field Immunity

30 A/m at 50 and 60 Hz

IEC 61000-4-11 Voltage Dips, Short

Interruptions and Voltage Variations

ENVIRONMENTAL SPECIFICATIONS(1)

Operating

TEMPERATURE

FBM223-20 to +70°C (-4 to +158°F)

Termination Assembly-20 to +50°C (-4 t

PHYSICAL SPECIFICATIONS

Mounting

MODULE

The FBM223 mounts on a Modular Baseplate.

The Modular Baseplate can be mounted

horizontally or vertically on a DIN rail, or mounted

horizontally in a 19-inch rack using a mounting

kit. Refer to PSS 21H-2W6 B4 for details.

TERMINATION ASSEMBLY

The TA accommodates multiple DIN styles

including 32 mm (1.26) and 35 mm (1.38 in) rails.

Mass

MODULE

284 g (10 oz) approximate (each module)

TA - COMPRESSION SCREW

363 g (0.8 lb) approximate

Dimensions

MODULE

HEIGHT

102 mm (4 in)

114 mm (4.5 in) including mounting lugs

WIDTH

45 mm (1.75 in)

DEPTH

104 mm (4.11 in)