Product Introduction
When your process demands reliable discrete output control in harsh environments, the Schneider FBM242 delivers robust performance. This externally sourced, discrete output interface module from Foxboro (by Schneider Electric) provides sixteen galvanically isolated channels, each capable of handling up to 2.25 A at voltages from 15 to 60 VDC. Designed to execute Discrete I/O or Ladder Logic programs, the Schneider FBM242 supports configurable options like Input Filter Time, Fail Safe Configuration, and Sustained or Momentary Outputs, ensuring precise process control even in Class G3 harsh environments.
Technical Specifications Breakdown
| Parameter |
Value |
| Output Channels |
16 isolated |
| Applied Voltage (max) |
15 to 60 VDC |
| Load Current per Channel (max) |
2.25 A |
| In-Rush Current (30°C) |
8 A for 20 ms |
| On-State Voltage Drop |
0.2 V at 2.25 A |
| Off-State Leakage Current |
0.1 mA |
| Output Isolation |
600 VAC for 1 minute between channels and ground |
| Power Input (Redundant) |
24 VDC +5%, -10% |
| Consumption (max) |
3 W at 24 VDC |
| Heat Dissipation (max) |
6.5 W at 24 VDC (all outputs at 1.5 A) |
| Operating Temperature (Module) |
-20 to +70°C |
| Humidity |
5 to 95% noncondensing |
| Dimensions (L x W x H) |
10.4 cm x 4.5 cm x 11.4 cm |
| Weight |
0.284 kg |
| Communication |
Redundant 2 Mbps module Fieldbus |
| Certifications |
RoHS, IECEx |
Industry Applications
The Schneider FBM242 excels in oil and gas, chemical processing, and power generation facilities where reliable discrete output control is critical. Its galvanic isolation prevents ground loops and noise interference, making it ideal for connecting to solenoids, relays, and indicator lights in remote or hazardous locations. The module's compact design and Class G3 harsh environment rating allow deployment in enclosures exposed to vibration (0.75g), temperature extremes, and corrosive atmospheres.
Installation and Setup Guidance
Installing the Schneider FBM242 requires mounting it in a suitable enclosure meeting Class G3 (harsh) standards. No calibration is needed—simply connect the module to its termination assembly and to the redundant module Fieldbus using the associated FCM or FCP. Ensure the power supply provides 24 VDC within +5%/-10% and that external excitation is used for group isolation. Follow the manufacturer's guidelines for wiring inductive loads; a protective diode or MOV may be required.
Maintenance and Reliability
The Schneider FBM242 requires no routine calibration, reducing long-term maintenance costs. Periodic visual inspection of connectors and environmental conditions (temperature, humidity) is recommended to ensure peak performance. With its robust design and IECEx certification, this module delivers extended service life even under continuous operation, offering excellent return on investment through minimized downtime.
Selection Guide and Purchasing Advice
Before purchasing the Schneider FBM242, verify that your system's power supply meets the 24 VDC redundant input requirements and that the termination assembly is compatible. This module is a direct replacement for Foxboro I/O systems using the 2 Mbps Fieldbus. For genuine, tested FBM242 units, visit ubest101 for detailed availability and fast shipping options.