Technical Overview
The Yokogawa PSMBXNAN16180-500/2 functions as a digital I/O module for the ProSafe-PLC safety instrumented system. This module combines 16 input channels and 16 output channels in a single unit, reducing the demand for backplane slots. It operates with a 24 VDC field supply and delivers 0.5 A per output channel for direct actuator control. The PSMBXNAN16180-500/2 includes SIL 3 certification according to IEC 61508, making it suitable for critical safety applications.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Combined Digital I/O Module |
| System Compatibility | ProSafe-PLC, ProSafe-RS |
| Input Channels | 16 (24 VDC, sink/source) |
| Output Channels | 16 (24 VDC, 0.5 A per channel) |
| Input Voltage Range | 19.2–30 VDC |
| Input Current | 4.5 mA per channel |
| Output On-state Voltage | 24 VDC (typical) |
| Output Current Rating | 0.5 A per channel (resistive load) |
| Isolation | 1,500 VAC (field to logic) |
| Diagnostic LEDs | 16 input status / 16 output status |
| Power Supply | 5 VDC (logic) / 24 VDC (field) |
| Current Draw | 300 mA (5 V) / 20 mA per active channel (24 V) |
| Dimensions (H x W x D) | 130 x 40 x 150 mm |
| Weight | 0.6 kg |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -25°C to 70°C |
| Protection Class | IP20 |
| Safety Integrity Level | SIL 3 (IEC 61508) |
Combined I/O Architecture
The Yokogawa PSMBXNAN16180-500/2 integrates 16 digital inputs and 16 digital outputs in one housing, maximizing channel density per slot. Each input channel receives signals from field sensors such as limit switches and proximity detectors, while each output channel drives actuators up to 0.5 A. This unified design simplifies installation and reduces spare parts inventory.
Safety and Isolation
This module provides 1,500 VAC isolation between field wiring and internal logic, protecting the controller from electrical transients. The PSMBXNAN16180-500/2 adheres to SIL 3 requirements with comprehensive self-diagnostics and read-back verification on outputs. Consequently, the module ensures reliable operation in emergency shutdown and fire/gas systems.
Diagnostics and Integration
Individual LED indicators illuminate for each input and output channel, providing immediate visual status of field signals. The PSMBXNAN16180-500/2 also reports diagnostic data over the system bus, enabling condition monitoring from the safety controller. With its high channel count and safety certification, this module optimizes space and cost in safety applications.
Details
| Weight | 0.6 kg |
|---|---|
| Dimensions | 130 × 40 × 150 mm |
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