Honeywell 8C-PCNT02 / 8C-TCNTA1 / 8C-PAINA1 / 8C-PAONA1 – HC900 Series I/O Modules | Process Control I/O
The Honeywell HC900 series I/O modules are purpose-engineered for demanding process control environments. This listing covers four field-proven module variants — 8C-PCNT02 (Pulse Counter Input), 8C-TCNTA1 (Thermocouple Input), 8C-PAINA1 (Analog Input), and 8C-PAONA1 (Analog Output) — each designed to integrate seamlessly into the HC900 hybrid controller platform used across refining, chemical, power, and HVAC industries.
Procurement engineers sourcing replacement or expansion I/O for HC900 systems will find these modules immediately deployable, with no firmware reconfiguration required when replacing like-for-like units.
Complete Technical Specifications
| Parameter | 8C-PCNT02 | 8C-TCNTA1 | 8C-PAINA1 | 8C-PAONA1 |
|---|---|---|---|---|
| Module Type | Pulse Counter Input | Thermocouple Input | Analog Input | Analog Output |
| Channel Count | 2 channels | 8 channels | 8 channels | 8 channels |
| Signal Range | 0–10 kHz pulse | J, K, T, E, R, S, B, N types | 4–20 mA / 0–10 V | 4–20 mA / 0–10 V |
| Resolution | 32-bit counter | 0.1 °C / 0.1 °F | 12-bit (0.025%) | 12-bit (0.025%) |
| Isolation | Channel-to-bus isolated | Channel-to-bus isolated | Channel-to-bus isolated | Channel-to-bus isolated |
| Power Consumption | ≤ 1.5 W | ≤ 2.0 W | ≤ 1.8 W | ≤ 2.5 W |
| Operating Temp. | 0 °C to +60 °C | 0 °C to +60 °C | 0 °C to +60 °C | 0 °C to +60 °C |
| Storage Temp. | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| Humidity | 5–95% RH, non-condensing | 5–95% RH, non-condensing | 5–95% RH, non-condensing | 5–95% RH, non-condensing |
| Backplane Interface | HC900 I/O Bus | HC900 I/O Bus | HC900 I/O Bus | HC900 I/O Bus |
| Certifications | CE, UL | CE, UL | CE, UL | CE, UL |
| Form Factor | Single-slot I/O module | Single-slot I/O module | Single-slot I/O module | Single-slot I/O module |
| Weight | ~1060 g (packaged) | ~1060 g (packaged) | ~1060 g (packaged) | ~1060 g (packaged) |
Proven Application Environments
- Oil & Gas Processing: Flow measurement and pulse totalization using 8C-PCNT02 for turbine meter inputs
- Chemical & Petrochemical Plants: Multi-zone temperature profiling via 8C-TCNTA1 thermocouple inputs across reactor vessels
- Power Generation: Analog feedback loops for boiler control using 8C-PAINA1 and 8C-PAONA1 in coordinated PID strategies
- HVAC & Building Automation: Chiller and AHU control with analog I/O modules integrated into HC900 hybrid controllers
- Water & Wastewater Treatment: Pump speed control and flow monitoring with 4–20 mA signal chains
- Pharmaceutical Manufacturing: Validated process control loops requiring high-resolution analog I/O with audit trail support
Engineering Advantages
- Hot-swap capable: Modules can be replaced under power in supported HC900 rack configurations, minimizing process downtime
- Unified platform: All four modules share the same HC900 backplane, simplifying spare parts inventory and technician training
- High channel density: 8-channel configurations reduce rack space requirements versus legacy single-channel I/O cards
- ColdFusion-free wiring: Screw-terminal field wiring connectors are removable for fast module swap without rewiring
- Integrated diagnostics: Module-level fault detection reported to HC900 controller for predictive maintenance workflows
- Wide thermocouple compatibility: 8C-TCNTA1 supports 8 IEC-standard TC types, eliminating the need for signal conditioners
System Architecture & Signal Flow
All four modules mount directly into the HC900 I/O expansion rack and communicate over the proprietary HC900 I/O bus to the C30, C50, C70, or C75 controller CPU. Field signals connect via removable screw-terminal blocks (RTBs). The controller’s Designer software auto-discovers installed modules and assigns function block tags automatically upon rack scan.
Typical signal chain (analog loop example):
Field transmitter (4–20 mA) → 8C-PAINA1 channel → HC900 I/O bus → Controller PID block → 8C-PAONA1 channel → Control valve positioner
Pulse counter chain:
Turbine/flow meter pulse output → 8C-PCNT02 → HC900 totalizer function block → SCADA/HMI display
Sourcing & Quality Verification
- All units sourced from authorized Honeywell distribution channels or verified industrial surplus with full traceability
- Each module undergoes visual inspection, label verification, and functional bench test prior to shipment
- Original Honeywell part numbers confirmed against Honeywell Process Solutions product catalog
- Counterfeit-risk screening applied: holographic labels, PCB markings, and firmware version checks performed
- Packaging: anti-static bag + foam-lined carton; ESD-safe handling throughout
Procurement Process
- Confirm the specific module part number required (8C-PCNT02 / 8C-TCNTA1 / 8C-PAINA1 / 8C-PAONA1)
- Verify HC900 rack slot availability and controller firmware compatibility (Designer v4.2+ recommended)
- Submit purchase order via Konmask.com or contact support@konmask.com for volume pricing
- Lead time: in-stock units ship within 2–5 business days; DHL / FedEx international express available
- Export documentation (commercial invoice, packing list, COO) provided for customs clearance
Technical FAQ
Q: Are these modules compatible with HC900 C30 and C70 controllers?
A: Yes. All four modules are compatible with the full HC900 controller family (C30, C50, C70, C75) using the standard I/O expansion rack.
Q: Can 8C-PAINA1 accept voltage inputs (0–10 V) in addition to 4–20 mA?
A: Yes. Input type is software-selectable per channel via HC900 Designer configuration.
Q: What is the maximum number of 8C-PAONA1 modules per HC900 rack?
A: Up to 16 I/O modules per expansion rack; total analog output channel count depends on controller model and I/O budget.
Q: Do you provide a warranty?
A: Yes. Konmask.com provides a 90-day functional warranty on all modules. DOA units are replaced at no charge.
Q: Can I request a datasheet or test report?
A: Yes. Contact support@konmask.com with your part number and we will provide the Honeywell product datasheet and our inspection report.
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