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Foxboro P0916RH FBM219 Termination Assembly Module

Configured for electrical termination and loop monitoring in Foxboro I/A Series system architectures, the Foxboro P0916RH (FBM219 Termination Assembly Module) provides direct physical/electrical execution. This hardware interface maps field-side signal paths directly to host I/O processors via channel-isolated wiring networks, eliminating signal degradation across high-density control loops.

Hardware Specifications

Parameter Specification
Model P0916RH
Brand Foxboro (Invensys / Schneider Electric)
Origin USA / Mexico
Weight 0.75 kg
Dimensions 125 mm x 45 mm x 115 mm
Operating Temp -20 to +70 deg C
Power Consumption 5 W max at 24 VDC
System Compatibility Foxboro I/A Series FBM219
Channel Capacity 24 Input Channels (Group Isolated)
Input On-State Voltage 15 to 30 VDC
Input Off-State Voltage 0 to 5 VDC
Input Current (Typical) 2.2 mA at 30 VDC
Output Applied Voltage 60 VDC max
Output Load Current 0.25 A max
Output Leakage Current 0.25 mA max
Loop Power Protection Current limited to 2.5 mA per input
Relative Humidity 5% to 95% RH, non-condensing
Mounting Standard DIN Rail / Cabinet Enclosure

Process Control Isolation and Signal Integrity

The Foxboro P0916RH incorporates channel-to-channel and group galvanic isolation across all 24 Discrete Input Voltage Monitoring channels to prevent ground loops in high-noise DCS industrial environments. Ground potential differentials between field sensing devices and backplane processing electronics remain isolated, preserving signal clarity across continuous control loops. Integrated loop power protection limits fault current to 2.5 mA per input leg, maintaining systemic stability under field wire short-circuit events while keeping overall heat dissipation capped at 6 W max at 24 VDC.

Frequently Asked Questions

Q: What is the input impedance threshold required to trigger an On-State status on the P0916RH?

A: The input circuit registers an On-State condition when the source resistance drops below 1 kOhm maximum at 15 VDC, drawing a typical current of 2.2 mA at 30 VDC.

Q: How does the module handle overcurrent conditions on loop power connections?

A: Integrated current-limiting circuitry caps loop power output to 2.5 mA per input leg, protecting internal terminal trace pathways from short-circuit damage.

Field Installation Guidelines

  1. Mounting Orientation: Secure the module onto a 35 mm DIN rail within an IP54-rated cabinet. Ensure vertical spacing of at least 50 mm above and below the assembly for natural convection cooling.
  2. Wiring Terminals: Strip field wiring conductors to 6 mm. Torque screw-type terminals to 0.5 Nm (4.4 in-lb) maximum. Verify that field signal cables do not exceed the maximum source resistance limit of 1 kOhm for On-State operation.
  3. Shield Shielding & Grounding: Terminate overall cable shields at the dedicated cabinet ground bar using low-impedance grounding clamps. Do not connect field cable shields at both ends to prevent earth loop circulating currents.

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