Technical Description
The NFDV161-P00 S2 is a specialized digital output module designed for high-availability control in Yokogawa CENTUM VP and ProSafe-RS systems. It provides 16 isolated discrete output channels, enabling reliable signaling to field devices such as actuators, alarm indicators, and intermediate relays.
As part of the FIO (Field Interface Option) family, the module connects directly to the system I/O bus, offering low-latency communication and robust signal integrity. The S2 designation indicates an updated hardware revision, which incorporates enhanced thermal performance and modernized internal circuitry, ensuring long-term reliability in continuous industrial operations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Channel Count | 16 discrete output channels |
| Output Mechanism | Isolated digital switching (sink/source depends on terminal board) |
| Rated Voltage | 24 V DC nominal |
| Maximum Current | Up to 100 mA per channel |
| Isolation Voltage | 1500 V AC (Output to system bus) |
| Response Time | < 5 ms |
| Power Consumption | 350 mA @ 5 V DC (internal bus) |
| Operating Temperature | -20°C to +70°C |
| Mounting | Standard FIO module mounting (DIN rail or backplane rack) |
| Dimensions | 126 mm × 124 mm × 22 mm |
| Weight | 0.3 kg |
Operational Application
The NFDV161-P00 S2 is commonly used in process plants where accurate discrete control is required. It acts as a bridge between controller logic and field instrumentation, providing isolated, reliable output signals to manage valves, motors, alarms, and other actuators.
The module’s 16-channel density is ideal for medium-sized control nodes, balancing space efficiency and I/O capacity. Its high isolation voltage ensures signal integrity even in environments with ground potential variations, making it suitable for chemical, oil, and gas processing facilities.
Frequently Asked Questions
Is the NFDV161-P00 S2 compatible with non-isolated terminal boards?
Compatibility depends on the terminal board used. The module is designed for isolated operation, but the connection type must match the backplane and terminal board configuration. Verify wiring schematics before installation.
How does the S2 revision differ from the P00 base model?
The S2 hardware revision includes component lifecycle enhancements and minor performance optimizations for improved stability and compatibility with modern FIO control buses.
Does this module support redundant backplane installation?
Yes. When paired with a redundant I/O nest and configured properly in ProSafe-RS or CENTUM VP systems, the module supports dual-redundant operation, ensuring uninterrupted discrete signaling during hardware switchover.
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