Product Overview
The Honeywell 8C-TAIX61 (part number 51306977-175) is a high-precision 6-channel analog input IOTA module developed for Honeywell’s Experion PKS Series 8 distributed control system, representing the gold standard for field signal acquisition in demanding process automation applications. As a core I/O building block that interfaces directly with Honeywell C300 controllers, the Honeywell 8C-TAIX61 51306977-175 converts standard industrial analog signals—4-20 mA, 0-10 V DC, and ±10 V DC—into high-resolution digital data that the control system can act upon in real time. The module belongs to Honeywell’s G3 Series 8 I/O family, with the “8C” prefix denoting the coated (conformal-coated) variant specifically engineered for humid, dusty, and corrosive industrial environments, while the twin model 8U-TAIX61 offers an uncoated version for standard indoor control rooms.
Built around a 16-bit A/D conversion architecture, the Honeywell 8C-TAIX61 51306977-175 delivers an exceptional measurement accuracy of ±0.05% full scale, with a 50 ms per-channel update rate that satisfies the real-time monitoring requirements of modern process plants. The module’s 2500 V AC electrical isolation between the input channels and the system backplane effectively blocks ground potential differences and electromagnetic interference, while each channel incorporates independent overvoltage, overcurrent, and reverse-polarity protection to safeguard against sensor faults. With a CMRR exceeding 120 dB at 50/60 Hz, the Honeywell 8C-TAIX61 demonstrates extraordinary noise rejection capability, ensuring signal integrity even in the most electrically hostile environments.
The Honeywell 8C-TAIX61 51306977-175 is powered directly from the 24 V DC Series 8 IOTA backplane, drawing approximately 105 mA (≈2.52 W), eliminating the need for external power supplies. It supports hot-swappable insertion into a single IOTA slot, redundant configuration with C300 controllers over ControlNet and redundant ControlNet, channel-level diagnostics, and configurable fail-safe behavior (hold last value or output preset safety value). Certified to CE, UL, CSA, and SIL 2, with IP20 protection for in-cabinet installation and a compact footprint weighing just 0.56 kg, the 51306977-175 embodies Honeywell’s commitment to reliability, maintainability, and long-term operational continuity across the process industries.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 8C- (Coated) / 8U- (Uncoated) |
| Part Number | 51306977-175 |
| Manufacturer | Honeywell |
| Product Type | 6-Channel Analog Input IOTA Module |
| System Family | Honeywell Experion PKS Series 8 (G3 Series 8 I/O) |
| Compatible Controllers | C300 Controller, Experion PKS, PlantCruise |
| Input Channels | 6 channels, fully isolated |
| Supported Signals | 4-20 mA, 0-10 V DC, ±10 V DC |
| A/D Resolution | 16-bit |
| Measurement Accuracy | ±0.05% FS (full scale) |
| Channel Update Rate | 50 ms per channel |
| Input Filtering | Built-in 50/60 Hz digital filtering |
| Electrical Isolation | 2500 V AC, channel-to-backplane |
| Common-Mode Rejection | > 120 dB @ 50/60 Hz |
| Channel Protection | Overvoltage, overcurrent, reverse-polarity protected |
| Diagnostics | Wire-break, out-of-range, over-range channel diagnostics |
| Backplane Power | 24 V DC, ≈105 mA (≈2.52 W) |
| Communication | ControlNet / Redundant ControlNet to C300 |
| Fail-Safe Mode | Hold last value or output preset safety value |
| Hot-Swap Support | Yes, online replacement without system interrupt |
| Operating Temperature | 0 °C to +60 °C (standard IOTA range) |
| Storage Temperature | -40 °C to +85 °C |
| Humidity | 5 %–95 % RH, non-condensing |
| Protection Rating | IP20 (for in-cabinet installation) |
| Mounting | Single-slot Series 8 IOTA rack |
| Weight | ≈0.56 kg |
| Certifications | CE, UL, CSA, SIL 2 |
| Country of Origin | USA |
