FBM20

Basic Information

Model: FBM20

Manufacturer: Foxboro / Schneider Electric

Type: 8 Channel Isolated Pulse Input Module

System: I/A Series DCS

Status: Obsolete, spare part only

Specifications

Channel Count: 8 isolated pulse input channels

Input Signal: Pulse, frequency, square wave

Frequency Range: 0 Hz to 10 kHz

Isolation: Galvanic isolation channel-to-channel and channel-to-ground

Resolution: 16 bit

Fieldbus: 2 Mbps redundant fieldbus

Power Supply: 24VDC ±10%

Power Consumption: 8W max

Operating Temperature: 0°C to +60°C

Environmental Rating: ISA S71.04 Class G3

Mounting: Standard I/A Series baseplate

Hot Swappable: Available in redundant configuration

Key Features

High density 8-channel isolated pulse and frequency input

Compatible with flow meters, speed sensors and pulse transmitters

Precise frequency and total pulse counting function

Full galvanic isolation eliminates interference and signal distortion

Redundant fieldbus provides stable data transmission

Onboard LED status indication and self-diagnostic capability

Supports online hot-swap replacement

Application

Pulse signal acquisition for flow, rotation speed and turbine instruments

Accumulation and measurement of process pulse signals

Applied in chemical, petrochemical, power, oil & gas and water treatment industries

FBM21

Basic Information

Model: FBM21

Manufacturer: Foxboro / Schneider Electric

Type: 8 Channel Isolated Pulse Output Module

System: I/A Series DCS

Status: Obsolete, spare part only

Specifications

Channel Count: 8 isolated pulse output channels

Output Signal: Pulse, frequency, square wave

Frequency Range: 0 Hz to 10 kHz

Isolation: Galvanic isolation channel-to-channel and channel-to-ground

Resolution: 16 bit

Fieldbus: 2 Mbps redundant fieldbus

Power Supply: 24VDC ±10%

Power Consumption: 8W max

Operating Temperature: 0°C to +60°C

Environmental Rating: ISA S71.04 Class G3

Mounting: Standard I/A Series baseplate

Hot Swappable: Available in redundant configuration

Key Features

High density 8-channel isolated pulse and frequency output

Compatible with pulse-controlled valves, counters and frequency-driven devices

Precise frequency and pulse width modulation (PWM) control

Full galvanic isolation prevents cross-talk and noise interference

Redundant fieldbus ensures reliable and stable communication

Onboard LED status indicators for power, communication and channel status

Supports online hot-swap replacement for minimal downtime

Application

Pulse signal output for flow control valves, speed governors and pulse counters

Frequency control for inverters, motors and other frequency-dependent devices

Applied in chemical, petrochemical, power, oil & gas and water treatment industries