The Foxboro P0916NG, also cataloged as the P0916NG Compression Termination Assembly, operates as a dedicated hardware component for physical field wiring distribution and loop execution within Foxboro I/A Series DCS networks. The hardware functions as a 2-tier relay discrete output isolation block, routing and conditioning discrete control signals between external field relay circuits and host fieldbus modules.
| Parameter | Specification |
|---|---|
| Model | P0916NG |
| Brand | Foxboro (Schneider Electric) |
| Origin | USA |
| Weight | 1.72 lbs |
| Dimensions | 147 mm x 51.5 mm x 114 mm |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | <= 8.5 W |
| Circuit Architecture | 2-tier relay discrete output |
| Termination Type | Screw-clamp terminals |
| Redundancy Switching Time | < 10 ms |
| Signal Response Time | < 50 ms |
| Input Voltage Options | 100-120 V AC / 24 V DC configuration dependent |
| Output Voltage Range | 5-30 V DC |
| Enclosure Rating | IP20 (cabinet installation required) |
| Storage Temp | -40 to +85 deg C |
The termination assembly incorporates a 2-tier physical array to enforce galvanic separation between inductive field relay loops and the primary digital backplane logic. This channel-to-channel isolation architecture suppresses high-voltage inductive switching transients and localized electromagnetic cross-talk. The subsystem interface is engineered to maintain a deterministic redundancy switching time of less than 10 ms when paired with redundant I/O configurations, ensuring continuous, uncompromised fail-safe state execution without dropping critical fieldbus data frames.
Q: Can an FBM module mapped to this termination assembly be extracted while the system is powered?
A: Yes, the hot-swappable hardware layer allows active fieldbus modules to be extracted or inserted without interrupting the discrete loop state or disconnecting the field wiring secured to the screw terminals.
Q: What is the maximum line response delay through the internal relay isolation circuits?
A: The total signal response time from the backplane command transition to the physical state change at the screw terminals is rated at less than 50 ms under full electrical load parameters.
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