P0916BX
Product Name
P0916BX is a Honeywell TDC 3000 Series Digital Input/Output (DI/DO) Module (also referred to as Honeywell P0916BX I/O Interface Module, Industrial Process Control Signal Interface Module), a core signal processing component designed for Honeywell TDC 3000 Distributed Control System (DCS) to enable bidirectional data exchange between the DCS controller and field devices.
2. Product Description
The P0916BX module is an industrial-grade digital input/output (DI/DO) module developed by Honeywell, a global leader in industrial automation and control solutions. Specifically engineered for the TDC 3000 DCS—one of the most widely deployed legacy process control platforms—the module serves as a critical interface between the TDC 3000 controller and field devices (e.g., sensors, switches, valves, relays). Its core functions include real-time acquisition of digital status signals from field sensors/switches (DI) and output of digital control signals to actuators/relays (DO), enabling process monitoring and control for industrial applications.
Featuring a rugged industrial design optimized for harsh process environments, the module integrates signal isolation, conditioning, and driver circuits to ensure reliable operation in conditions with temperature fluctuations, vibration, electrical noise, and humidity—common in petrochemical plants, refineries, power stations, and chemical processing facilities. It supports seamless integration with the TDC 3000 system backplane and Honeywell’s Engineering Workstation (EWS) for configuration, status monitoring, and fault diagnosis.
Widely used in legacy process control systems, the P0916BX module plays a vital role in maintaining the operational continuity of critical industrial processes, enabling precise control of field equipment, real-time status monitoring, and rapid fault detection—making it an essential component for reliable and efficient industrial process control.
3. Product Parameters
| Parameter Category | Specific Specifications |
|---|---|
| Product Type | Honeywell TDC 3000 Series Digital Input/Output (DI/DO) Combo Module |
| Manufacturer | Honeywell Process Solutions (HPS) |
| Compatible Systems | Honeywell TDC 3000 Distributed Control System, Honeywell TPS (TotalPlant Solution) |
| Input/Output Configuration | 16 Digital Inputs (DI) + 16 Digital Outputs (DO) |
| Digital Input Type | Dry Contact / NPN Open Collector, 24V DC Nominal |
| Digital Input Voltage Range | 18V DC – 30V DC (Active); ≤5V DC (Inactive) |
| Digital Input Response Time | ≤1ms (Typical) |
| Digital Output Type | Relay Output (SPDT, Form C) |
| Digital Output Contact Rating | 250V AC / 30V DC, 5A Resistive Load; 250V AC, 2A Inductive Load (cosφ=0.4) |
| Digital Output Response Time | ≤10ms (Activation/Deactivation) |
| Input/Output Isolation | Channel-to-Channel: ≥500Vrms; Channel-to-System: ≥1000Vrms |
| Communication Interface | Honeywell TDC 3000 Backplane Bus (Proprietary Parallel Bus) |
| Power Supply | Powered by TDC 3000 System Backplane (±5V DC ±5%, 24V DC ±10%) |
| Power Consumption | Typical: 15W; Maximum: 22W |
| Operating Temperature | 0℃ to +65℃ (32°F to +149°F) |
| Storage Temperature | -40℃ to +85℃ (-40°F to +185°F) |
| Relative Humidity | 5% – 95% RH (Non-condensing, IEC 60068-2-3) |
| Protection Class | IP20 (Designed for Cabinet Mounting in TDC 3000 Control Panels) |
| Dimensions (W×H×D) | 160mm × 220mm × 80mm (6.30″ × 8.66″ × 3.15″) |
| Weight | Approximately 1.1kg (2.43 lbs) |
| Certifications | CE, UL, CSA, IEC 61010-1, IEC 61326-2-4 (EMC) |
| Diagnostic Capabilities | Channel Fault Detection (Open/Short Circuit), Module Self-Diagnosis, Power Supply Monitoring |
4. Specifications
(1) Physical Specifications
- Mechanical Design: Modular form factor compatible with Honeywell TDC 3000 standard racks and backplane connectors. Reinforced edge connectors ensure reliable electrical contact in high-vibration industrial environments, while the compact design optimizes space utilization in control cabinets.
- Housing & Material: Flame-retardant industrial-grade plastic shell (UL 94 V-0 rating) with electromagnetic shielding coating, providing mechanical durability and resistance to EMI/RFI interference. The module features a conformal coating on internal circuits to protect against dust, moisture, and chemical contaminants.
- Interface & Indicators: Front-panel LED indicators for power status (PWR), module health (OK), and per-channel activation/faults (DI/DO status LEDs); rear-mounted terminal blocks for field wiring (screw-locking design for secure connections); backplane connector for integration with the TDC 3000 system.
(2) Functional Specifications
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Signal Processing Performance
- 16 digital input channels support dry contact and NPN open collector signals, enabling compatibility with a wide range of field switches (e.g., limit switches, emergency stops, safety interlocks) and sensors. Fast response time (≤1ms) ensures real-time capture of critical status changes.
- 16 SPDT relay outputs provide flexible control of field actuators (e.g., solenoid valves, contactors, alarm horns) with high contact ratings, eliminating the need for additional interface modules for most industrial applications.
- Enhanced electrical isolation (≥500Vrms channel-to-channel) prevents cross-interference between channels and protects the TDC 3000 controller from voltage surges or wiring faults in the field.
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System Integration & Compatibility
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Seamlessly integrates with Honeywell TDC 3000 controllers via the proprietary backplane bus, enabling low-latency data exchange for control logic execution and status monitoring.- Configurable via Honeywell TDC 3000 Engineering Workstation (EWS) software, supporting channel assignment, fault threshold setting, and diagnostic enablement.
- Compatible with Honeywell TPS (TotalPlant Solution) systems via migration adapters, facilitating legacy system upgrades without full replacement of I/O modules.
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Reliability & Protection
- Rugged construction and industrial-grade components ensure stable operation in harsh process environments, complying with IEC 60068-2 standards for temperature, vibration, and humidity.
- Built-in self-diagnostic functions monitor module hardware (CPU, power supply, internal circuits) and channel status (open/short circuits), with fault data transmitted to the TDC 3000 controller for alarms and rapid troubleshooting.
- Overcurrent and overvoltage protection on output channels prevents relay damage due to field wiring errors or equipment malfunctions.