FOXBORO FBM241 Voltage Monitor Invensys Process System PLC Termination Assy

FOXBORO FBM241 Voltage Monitor Invensys Process System PLC Termination Assy

Features

• 8 discrete inputs

• 8 discrete outputs

• Supports discrete inputs/output signals at voltages of:

◦ 15 to 60 VDC

◦ 120 VAC/125 VDC

◦ 240 VAC

• Each input and output is galvanically isolated: group isolated when used with

external excitation

• Compact, rugged design suitable for enclosure in Class G3 (harsh) environments

• Executes the Discrete I/O or Ladder Logic program, with the following

configurable options: Input Filter Time, Fail Safe Configuration, Fail-Safe FallBack, and Sustained or Momentary Outputs

• Various Termination Assemblies (TAs) that contain:

◦ Current limiting devices

◦ Fuses

◦ Relay outputs

◦ Relay outputs with internal or external power source and fusing

◦ Solid state outputs

Overview

The Compact FBM241, FBM241c, and FBM241d each have eight discrete inputs and

eight discrete outputs.

The Compact Channel Isolated, Discrete I/O Interface Modules (Compact FBM241/c/

d) have eight discrete input channels and eight discrete output channels. Associated

termination assemblies (TAs) support discrete input or output signals at voltages of

under 60 VDC, 120 VAC/125 VDC, or 240 VAC.

Depending on the type of I/O signal required, the TAs contain current limiting devices,

fuses, relays, or relay outputs with internal or external power source and fusing

Each type of Fieldbus Module (FBM), without signal conditioning, uses a 15 to 60

VDC input or output signal. Each discrete input and output is galvanically isolated

from other channels and ground. When used with external excitation, each discrete

input and output is group isolated.

The module performs signal conversion required to interface electrical input signals

from field sensors to the optionally redundant fieldbus. It executes the Discrete I/O or

Ladder Logic program, with the following configurable options: Input Filter Time, Fail

Safe Configuration, Fail-Safe Fall-Back, and Sustained or Momentary Outputs. If the

Momentary Output configuration is selected, then Pulse Output Interval is also

configurable.