Foxboro FBM242 Discrete Output Module

Overview

The Foxboro FBM242 is a high-performance Discrete Output Module designed for seamless integration into industrial automation systems. It interfaces electrical output signals from a control processor to field devices, such as motors, valves, and relays. The module features 16 isolated output channels, supporting a wide range of voltages from 15 V DC to 240 V AC. It ensures full isolation for each channel, providing robust protection and reliability, especially in harsh environments.

The FBM242 module offers advanced functionality, including ladder logic support, a fail-safe configuration, and momentary or sustained outputs. These features make it ideal for applications requiring precision and reliability in industrial control systems.

Key Features

16 Isolated Output Channels: Supports up to 2.25 A per channel at voltages ranging from 15 V DC to 240 V AC.
Galvanic Isolation: Each output is fully isolated, preventing interference and protecting the system from electrical surges.
Fail-Safe Configuration: The module offers a fail-safe fall-back option, ensuring safe operation during unexpected conditions.
Input Filter Time: Configurable for specific input filtering requirements, enhancing system flexibility.
Rugged and Compact Design: Features a durable ABS exterior for physical protection and a narrow form factor.
Easy Maintenance: Facilitates simple removal and replacement without disconnecting power, communication, or field device cables.
Wide Voltage Range: Compatible with 15 to 60 V DC, 120 V AC, and 240 V AC.

Technical Specifications

Specification	Details
Output Channels	16 isolated output channels
Applied Voltage	15 to 60 V DC (maximum)
Maximum Load Current	2.25 A per channel
Load In-Rush Current	8 A for 20 ms at 30°C, 6.4 A for 20 ms at 70°C
On-State Voltage Drop	0.2 V (maximum) at 2.25 A
Off-State Leakage Current	0.1 mA (maximum)
Inductive Loads	Requires a protective diode or MOV
Isolation	Galvanically isolated; withstands 600 V AC for 1 minute
Input Voltage (Redundant)	24 V DC ±5%, -10%
Maximum Power Consumption	3 W at 24 V DC
Maximum Heat Dissipation	6.5 W at 24 V DC (with all outputs at 1.5 A each)
Operating Environment	Suitable for Class G3 (harsh) environments
Electromagnetic Compatibility (EMC)	Complies with European EMC Directive 2004/108/EC and 2014/30/EU
RoHS Compliance	Meets European RoHS Directive 2011/65/EU
Standards	EN61326-1:2013 Class A emissions and industrial immunity
Calibration	No calibration required for the module or termination assemblies

Applications

The Foxboro FBM242 is ideal for applications where high reliability and precision are crucial. It is widely used in:

Oil and Gas: Interfacing with control processors to manage field devices.
Power Plants: Controlling large-scale equipment and systems with isolated outputs.
Manufacturing: Automating processes that require precise, fail-safe output signals.
Food and Beverage: Ensuring reliable operation of field devices such as valves and actuators.
Water Treatment: Monitoring and controlling field devices for water treatment processes.

Benefits

Enhanced System Reliability: Full isolation between channels provides protection against electrical surges and noise, ensuring uninterrupted operation.
Flexible and Configurable: The FBM242 module offers multiple output options, including fail-safe configurations and input filter time settings, allowing for tailored functionality.
Rugged Design: The module’s durable construction ensures reliable performance even in Class G3 (harsh) environments.
Efficient Maintenance: Easy removal and replacement without disconnecting field wiring, reducing downtime during maintenance.