The Yokogawa NFDV161-P00 serves as the primary NFDV161 Digital Output Module utilized to execute discrete signal switching across CENTUM VP / CS 3000 FIO platforms. The hardware distributes 64 independent current-sink transistor output channels designed to modulate external load hardware including solenoids, relays, and status indicators based on backplane command states.
| Parameter | Specification |
|---|---|
| Model | NFDV161-P00 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.3 kg |
| Dimensions | 107.5 x 130 x 32.8 mm |
| Operating Temp | -20 to +70 deg C |
| Power Consumption | 700 mA at 5 VDC (Logic Power); 120 mA at 24 VDC (Field Power) |
| Output Type | Current-sink transistor output |
| Channel Capacity | 64 digital outputs (divided into 32-channel common groups) |
| Rated Applied Voltage | 24 VDC |
| Load Voltage Range | 20.4 to 26.4 VDC |
| Maximum Load Current | 100 mA per channel at 26.4 VDC |
| Response Time | 3 ms or less |
| Withstanding Voltage | Output to system: 2000 VAC for 1 minute; Between commons: 500 VAC for 1 minute |
This high-density component interfaces with process control systems that route concurrent 4-20 mA HART loop protocol lines. Internal optical components establish an explicit barrier between the field-side electronics and the internal system logic, achieving a 2000 VAC withstanding voltage parameter. Group-to-group isolation provides a 500 VAC limit between individual 32-channel common buses, checking potential ground loop propagation and blocking inductive back-EMF transients from degrading the signal performance of adjacent low-voltage analog instrumentation circuits.
Q: What fallback states do the 64 transistor outputs assume upon a communication failure with the Field Control Unit?
A: The internal logic registers support three definitive fallback modes: HOLD (retains the final valid state prior to bus interruption), OFF (forces all 64 channels to open-circuit immediately), or NO (allows independent field conditions to persist without automatic system intervention).
Q: Does the -P00 suffix include localized front-panel LED indicators for channel status monitoring?
A: No. The -P00 suffix denotes the basic high-density configuration which excludes local status displays and explosion-proof containment options, prioritizing standard physical space scaling inside central marshalling cabinets.
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