Description
Foxboro FBM242 is a discrete output interface module.Here is a detailed introduction to it:
1.Basic attributes
Brand:Foxboro
Model:FBM242
Type:Discrete output interface module
2.Functional features
Discrete output channels:The FBM242 module contains 16 discrete output channels,all of which are powered by an external power supply.
Voltage support:Supports discrete output signals of the following voltages:
15 to 60V DC
120V AC/125V DC
240V AC
Electrical isolation:Each output is completely isolated from other channels and ground,and is group isolated when used with external excitation.
Structure and design:
Compact and rugged,suitable for cabinets in G3-level(harsh)environments.
It has a rugged acrylonitrile-butadiene-styrene(ABS)housing that provides physical protection for the circuit.
The front of the module is equipped with a light-emitting diode(LED)to intuitively display the operating status of the module and the discrete status of each output point.
Configuration options:Can execute discrete I/O or ladder logic programs,with the following configurable options:
Input filter time
Fail-safe configuration
Fail-safe fallback
Continuous or momentary output
Terminal assembly(TA):Contains the following:
Current limiting device
Fuse
Relay output with external power supply,fuse and power distribution
III.Technical parameters
Load current:Rated current up to 2A at 60V DC(some data indicate up to 2.25A per channel).
On-state voltage drop:0.2V(max)at 2.25A.
Off-state leakage current:0.1mA(max).
Input voltage range(redundant):24V DC+5%,-10%.
Power consumption(max):3 watts(max)at 24V DC.
IV.Application and installation
Application:The FBM242 module connects the electrical output signals of the control processor to field devices,executes digital I/O applications,supports ladder logic,and provides fail-safe configuration options for outputs.
Installation:The module is installed on the Compact 200 series base plate mounted on a DIN rail or rack horizontally.When removing/replacing the module,there is no need to remove the field device terminal cable,power supply or communication cable.
5.Communication and Redundancy
Fieldbus Communication:The fieldbus communication module or control processor is connected to the redundant 2Mbps module fieldbus used by FBM.FBM242 accepts communication from any path(A or B)of the redundant 2Mbps fieldbus.If one of the paths fails or is shut down at the system level,the module will continue to communicate through the active path.
Redundant power distribution:Provide redundant power distribution options to enhance system reliability and stability.
In summary,Foxboro FBM242 is a powerful,compact and harsh environment discrete output interface module.Its rich configuration options and technical parameters enable it to meet the needs of various industrial automation and control systems.
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