FOXBORO FBM216 HART® Communication Redundant Input Interface Module

cause near end crosstalk at the system end of the

loop wiring cable. Loops using FBM internal power

source do not require Baluns.

The Cable Balun module contains multiple Baluns.

One Balun segment is interconnected in each loop

powered from an external power supply per the

diagram above. There is one Cable Balun module.

Field Device Channels

VERSION SUPPORTED

HART Protocol v6

INTERFACE

8 group-isolated channels

COMMUNICATION TO THE DEVICE

Point-to-point, master/slave, asynchronous, half

duplex, at 1200 baud

ERROR CHECKING

Parity on each byte, and one CRC check byte

SPEED

2 messages per second

FASTEST ALLOWED ECB BLOCK PERIOD

500 msec

MAXIMUM DISTANCE (FBM216 TO FIELD

DEVICE)

Meets HART FSK physical layer specification

HCF_SPEC-54. Revision 8.1 [up to 3030 m

(10000 ft)](1)

COMPLIANCE VOLTAGE

18 V dc minimum at 20.5 mA

CURRENT INPUTS

Sense Resistor

61.9 Ω nominal

Total Input Resistance

280 Ω minimum

Analog Accuracy (Includes Nonlinearity)

± 0.075%(2) of full scale

Temperature Coefficient

50 PPM/°C

Resolution

15 bits

Update Rate

100 ms

Integration Time

500 ms

Common Mode Rejection

>100 db at 50 or 60 Hz

Normal Mode Rejection

>35 db at 50 or 60 Hz

LOOP POWER SUPPLY PROTECTION

Each channel is galvanically group isolated,

current limited, and voltage regulated.

All inputs are limited by their design to less than

30 mA with a single module installed (60 MA

when redundant modules are installed). If the

current limit circuit shorts out, the current is

limited to about 85 mA.

MAXIMUM LOOP RESISTANCE

280 Ω (not including the field device)(3)

FBM INPUT IMPEDANCE

280 Ω minimum

FBM INTERNAL POWER FOR FIELD DEVICE

24 V dc ±10% common power supply for all

channels. Loop load limited to one device per

channel.

ISOLATION

The channels are not galvanically isolated from

each other, but are galvanically isolated (both

optical and transformer isolation) as a group from

ground and module logic. Inputs use an internal

FBM isolated power supply for field power. The

module withstands, without damage, a potential

of 600 V ac applied for one minute between the

group isolated channels and earth (ground).

CAUTION

This does not imply that these 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

FUNCTIONAL SPECIFICATIONS (CONTINUED)

Fieldbus Communication

Communicates with its associated FCM or FCP via

the redundant 2 Mbps module Fieldbus

Power Requirements

INPUT VOLTAGE RANGE (REDUNDANT)

24 V dc ±5%

CONSUMPTION

7 W (maximum)

HEAT DISSIPATION

4 W (maximum)

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

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

PRODUCT SAFETY

European Low Voltage Directive 73/23/EEC

SAFETY CERTIFICATION (FBM AND CABLE

BALUN)

Underwriters Laboratories (UL) for U.S. and

Canada

UL/UL-C listed as suitable for use in

UL/UL-C listed Class I, Groups A-D;

Division 2; temperature code T4 enclosure

based systems. These modules are also UL

and UL-C listed as associated apparatus for

supplying non-incendive communication

circuits for Class I, Groups A-D hazardous

locations when connected to specified

I/A Series® processor modules as described

in the I/A Series DIN Rail Mounted

Subsystem User’s Guide (B0400FA). Where

power is supplied by the FBM,

communications circuits also meet the

requirements for Class 2 as defined in

Article 725 of the National Electrical Code

(NFPA No.70) and Section 16 of the

Canadian Electrical Code (CSA C22.1).

Conditions for use are as specified in the

I/A Series DIN Rail Mounted Subsystem

User’s Guide (B0400FA).

European Low Voltage Directive 73/23/EEC

and Explosive Atmospheres (ATEX) directive

94/9/EC

CENELEC (DEMKO) certified as EEx nA IIC

T4 for use in CENELEC certified Zone 2

enclosure certified as associated apparatus

for supplying non-incendive field circuits for

Zone 2. Group IIC, potentially explosive

atmospheres when connected to specified

I/A Series processor modules as described

in the I/A Series DIN Rail Mounted

Subsystem User’s Guide (B0400FA). Also,

see Table 1 on page 10.

Calibration Requirements

Calibration of the module or termination assembly is

not required

ENVIRONMENTAL SPECIFICATIONS(4)

Operating

TEMPERATURE

Module-20 to +70°C (-4 to +158°F)

Termination Assembly

PVC-20 to +50°C (-4 to +122°F)

PA-20 to +70°C (-4 to +158°F)

RELATIVE HUMIDITY

5 to 95% (noncondensing)

ALTITUDE-300 to +3.000 m (-1.000 to +10.000 ft)