Foxboro FBM239, Discrete 16DI/16DO Module

5 to 95% (noncondensing)

ALTITUDE-300 to +12.000 m (-1.000 to +40.000 ft)

Contamination

Suitable for use in Class G3 (Harsh) environments as

defined in ISA Standard S71.04. based on exposure

testing according to EIA Standard 364-65. Class III.

Vibration

0.75 m/S2 (0.75g) from 5 to 500 Hz

Mounting

MODULE

FBM239 mounts on a baseplate. The baseplate

can be mounted on a DIN rail (horizontally or

vertically), or horizontally on a 19-inch rack using

a mounting kit. Alternatively, FBM239 mounts on

a 100 Series conversion mounting structure.

Refer to Standard 200 Series Baseplates

(PSS 31H-2SBASPLT) or 100 Series Conversion

Mounting Structures (PSS 31H-2W8) for details.

TERMINATION ASSEMBLY

The TA mounts on a DIN rail and accommodates

multiple DIN rail styles including 32 mm (1.26 in)

and 35 mm 1.38 in)

Weight

MODULE

284 g (10 oz) approximate

TERMINATION ASSEMBLY - COMPRESSION

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)

Dimensions - Termination Assembly

Compression Screw - Refer to page 26

Part Numbers

FBM239 MODULE

RH927AG (supersedes P0927AG)

TERMINATION ASSEMBLIES

Refer to “FUNCTIONAL SPECIFICATIONS -

Standard TERMINATION ASSEMBLIES” on

page 8. “FUNCTIONAL SPECIFICATIONS - Main

TERMINATION ASSEMBLIES” on page 9 and

“FUNCTIONAL SPECIFICATIONS - Expansion

TERMINATION ASSEMBLIES” on page 15.

Termination Cables

CABLE LENGTHS

Up to 30 m (98 ft)

CABLE MATERIALS

Polyurethane or Low Smoke Zero Halogen

(LSZH)

TERMINATION CABLE TYPE

Baseplate to Main TA

Type 4 - Refer to Table 2

Main TA to Expansion TA

Type 6 - Refer to Table 3

BASEPLATE TO MAIN TA CABLE CONNECTION

FBM Baseplate End

37-pin D-subminiature

Termination Assembly End

37-pin D-subminiature

MAIN TA TO EXPANSION TA CABLE

CONNECTION

Main TA End

25-pin D-subminiature

Expansion TA End

37-pin D-subminiature

Construction - Termination Assembly

MATERIAL

Polyamide (PA), compression

Field Termination Connections

COMPRESSION - ACCEPTED WIRING SIZES

Solid/Stranded/AWG

0.2 to 4 mm2/0.2 to 2.5 mm2/24 to 12 AWG

Stranded with Ferrules

0.2 to 2.5 mm2 with or without plastic collar

TERMINATION ASSEMBLIES AND CABLES

General Description

Field I/O signals connect to the FBM subsystem via

DIN rail mounted termination assemblies (TAs).

Multiple types of TAs are available with FBM239 to

provide I/O signal connections, signal conditioning,

optical isolation from signal surges, and external

power connections for field devices as required by

the particular FBM. Since these features are built into

the termination assemblies (where required), in most

applications there is no need for additional

termination equipment for field circuit functions such

as circuit protection or signal conditioning (including

fusing and power distribution).

The DIN rail mounted termination assemblies

connect to the FBM subsystem baseplate by means

of removable termination cables. The cables are

available in a variety of lengths, up to 30 meters

(98 feet), allowing the termination assemblies to be

mounted in either the enclosure or in an adjacent

enclosure. Refer to “Cable Types and Part Numbers”

on page 22 and “Cable Types (Main TA to Expansion

TA Cables) and Part Numbers” on page 23 for

termination cable part numbers and specifications.

Use of Termination Assemblies in 100 Series

Upgrade

When an FBM239 is used to replace 100 Series

FBMs, its associated termination assembly is

determined based on which 100 Series FBM is being

replaced. Typically, the 100 Series FBM being

replaced is a main FBM and may be used in

conjunction with an expansion FBM.

A single FBM239 provides the I/O communications

for both the 100 Series equivalent main and

expansion TAs. To provide enough terminals for the

field I/O wiring, two termination assemblies are used

with the FBM239 - one for the field I/O wiring for the

replaced main FBM, and one for the field I/O wiring

for the replaced expansion FBM.

The “expansion” termination assembly is daisy

chained to the “main” termination assembly via the

expansion cables listed in Table 3 on page 25.

The table “FUNCTIONAL SPECIFICATIONS - Main

TERMINATION ASSEMBLIES” on page 9 lists the

termination assemblies needed to replace the

100 Series main FBMs. “FUNCTIONAL

SPECIFICATIONS - Expansion TERMINATION

ASSEMBLIES” on page 15 lists the termination

assemblies needed to replace the 100 Series

expansion FBMs.

Alternatively, the FBM239 can accept field wiring

through a Termination Assembly Adapter (TAA)

instead of the termination assemblies when replacing

100 Series FBMs. This is discussed in Termination

Assembly Adapter Modules for 100 Series Upgrade

(PSS 31H-2W4).

Discrete Inpu