The Honeywell 51304684 (also identified by assembly numbers 51401598-200 and 51304685-200-RP) is a high-reliability Communication Printed Wire Assembly (PWA) designed for the TDC 3000 and Experion PKS TotalPlant Solution (TPS) systems. This “CONFM” designated card features conformal coating for superior protection in harsh industrial environments.
Product Parameters (Datasheet)
- Model Number: 51304684
- Assembly Numbers: 51401598-200 / 51304685-200-RP
- Card Type: Communication PWA (Processor/Interface)
- System Compatibility: Honeywell TDC 3000 / Experion PKS (R300 and later)
- Protection: Conformal Coated (CONFM) for moisture and corrosion resistance
- Data Bus: Compatible with Honeywell LCN (Local Control Network) or UCN (Universal Control Network) architectures
- Processing Power: Enhanced R300-level communication throughput
- Power Consumption: Low-power CMOS architecture for reduced heat dissipation
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Humidity: 5% to 95% RH (Non-condensing)
Country of Origin
This communication module is engineered and manufactured by Honeywell Process Solutions in the USA, specifically for mission-critical distributed control system (DCS) infrastructure.
Application Fields
The 51304684 PWA is a core component in large-scale process automation, including:
- Oil Refining: Managing high-speed data exchange between process controllers and operator stations.
- Petrochemical Plants: Facilitating real-time monitoring of hazardous chemical reactors.
- Power Generation: Ensuring stable communication for turbine control and boiler management systems.
- Pulp and Paper: Coordinating complex multi-stage production lines.
- Pharmaceutical Manufacturing: Maintaining data integrity for regulatory compliance and batch control.
Product Usage Instructions
- Preparation: Before installation, verify the card’s revision and address settings via the onboard DIP switches or jumpers as per your system’s site-specific configuration.
- ESD Safety: Always use an anti-static mat and wrist strap when handling the 51304684 to protect the sensitive communication chipsets.
- Installation: Insert the card into the designated slot of the Honeywell card file. Ensure the board is fully seated and the ejector tabs are locked.
- Verification: Upon power-up, observe the status LEDs. A steady green “Run” or “OK” light indicates the card has successfully joined the network.
- Diagnostics: Use the Honeywell Native Window or Experion Station software to perform a loopback test or check for “soft” errors on the communication bus.
Product Technical Description
The 51304684 R300 COMMUN PWA serves as a critical bridge for data packets within the Honeywell DCS hierarchy. Technically, it handles the framing, error checking, and timing of signals sent across the control network. The “CONFM” (Conformal Coating) is a thin polymeric film applied to the electronic circuitry, which protects the 51401598-200 against atmospheric contaminants such as H2S, salt spray, and high humidity, significantly extending the life of the hardware in corrosive industrial “Class G3” environments.
Q&A (Common Questions)
Q: Can I use the 51304684-200-RP to replace an older non-coated card? A: Yes, the 51304685-200-RP is fully backwards compatible and provides superior environmental protection compared to non-coated versions.
Q: What does the “RP” suffix stand for in the part number? A: In the Honeywell system, “RP” typically stands for “Renewal Part” or “Replacement Part,” indicating a certified spare for existing installations.
Q: Why is my communication card showing a red “Fail” LED? A: This can indicate a hardware fault, a duplicate network address, or a failure to sync with the bus clock. Try reseating the card or checking the node address settings.
Q: Is this card compatible with the newer Experion PKS C300 controllers? A: This card is primarily designed for the TPS/TDC 3000 architecture and its integration into Experion; however, specific integration depends on your system’s I/O link configuration.
Similar Model Recommendations
- Honeywell 51401583-100 (Dual Node Command Processor)
- Honeywell 51304362-150 (LCN Communication Card)
- Honeywell 51401286-100 (UCN Interface Module)
- Honeywell 51304673-100 (Control Processor PWA)
- Honeywell 51309204-125 (Enhanced Communication Module)
For procurement or technical support regarding the Honeywell 51304684, please contact our process control specialists.
