TRICONEX 4305A – Network Communication Module | Tricon TMR Safety Platform
Engineering Background
The TRICONEX 4305A is a dedicated network communication module engineered for the Tricon Triple Modular Redundant (TMR) Safety PLC platform — one of the most widely deployed safety-instrumented system (SIS) architectures in global process industries. Developed by Triconex (a Schneider Electric brand), the 4305A enables high-integrity, deterministic data exchange between the Tricon controller and plant-wide DCS, SCADA, or historian networks, without compromising the safety loop’s independence or SIL rating.
Product Positioning
Designed for procurement engineers and control system integrators who require a certified, drop-in-compatible communication interface for existing Tricon chassis installations. The 4305A is the preferred module for facilities upgrading legacy serial-based communication to structured network protocols while maintaining full backward compatibility with the Tricon Main Chassis and TriStation 1131 programming environment.
Complete Technical Specifications
- Part Number: 4305A
- Manufacturer: TRICONEX (Schneider Electric)
- Module Type: Network Communication Module
- Platform Compatibility: Tricon TMR Safety PLC (v9.x / v10.x / v11.x chassis)
- Communication Protocol: Triconex Enhanced Peer-to-Peer (TEPP); supports Modbus TCP/IP, OPC DA
- Physical Interface: Dual RJ-45 Ethernet ports (10/100 Mbps)
- Redundancy Architecture: Triple Modular Redundant (TMR) — 2-out-of-3 voting logic
- Safety Integrity Level: SIL 3 (IEC 61508 certified)
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 95% non-condensing
- Power Consumption: Per Tricon chassis backplane specification
- Form Factor: Single-slot Tricon module card
- Weight: ~500 g
- Certifications: IEC 61508 SIL 3, CE, UL listed
- Firmware: Compatible with TriStation 1131 v4.x and above
Proven Application Environments
- Oil & Gas: Upstream wellhead control, midstream pipeline ESD, downstream refinery SIS
- Petrochemical & Chemical: Reactor safety shutdown, burner management systems (BMS)
- Power Generation: Turbine protection, boiler safety interlocks, nuclear auxiliary systems
- LNG / FLNG Facilities: High-availability communication between SIS and DCS layers
- Offshore Platforms: Fire & gas (F&G) system integration, emergency shutdown (ESD) networks
- Water & Wastewater: Critical pump and valve interlock communication
Engineering Advantages
- Non-Intrusive Installation: Hot-swappable module design allows replacement without shutting down the Tricon chassis or interrupting the safety function.
- Deterministic Latency: Guaranteed scan-cycle-aligned data delivery ensures time-critical safety data is never delayed by network congestion.
- Isolated Safety Domain: Communication layer is electrically and logically isolated from the TMR voting logic — network faults cannot propagate to the safety function.
- Dual-Port Redundancy: Supports ring or star Ethernet topologies with automatic failover between ports.
- TriStation 1131 Native Integration: Fully configurable within the standard Triconex engineering environment — no third-party middleware required.
- Long Service Life: Designed for 20+ year operational lifecycle consistent with process industry asset management standards.
System Architecture & Signal Flow
The 4305A occupies a dedicated communication slot in the Tricon Main Chassis. Data originates from the Tricon MP (Main Processor) modules via the TMR backplane bus. The 4305A arbitrates and packages this data into network frames, transmitting via its dual Ethernet ports to upstream SCADA, DCS historian, or peer Tricon nodes. Inbound commands from the network are validated against the module’s access-control configuration before being forwarded to the MP — ensuring the safety logic remains the sole authority over output states.
Signal Flow Summary: Tricon MP (TMR Backplane) → 4305A Communication Buffer → Dual Ethernet Ports → Plant Network (DCS / SCADA / Historian)
Sourcing & Quality Verification
- Origin: Genuine OEM TRICONEX / Schneider Electric production units
- Condition: New surplus, refurbished (tested), or used serviceable — specify at inquiry
- Inspection Standard: Each unit undergoes visual inspection, firmware version verification, and functional bench test prior to shipment
- Traceability: Serial number and firmware revision documented; COC (Certificate of Conformance) available on request
- Counterfeit Mitigation: All units sourced through verified industrial surplus channels; anti-counterfeit markings cross-checked against OEM reference database
- Packaging: ESD-safe anti-static bag, foam-lined carton, moisture barrier — compliant with IPC/JEDEC J-STD-033
Procurement Process
- Step 1 – Inquiry: Submit your RFQ via support@konmask.com or WhatsApp +0086 19859288691 with quantity, required condition, and delivery timeline.
- Step 2 – Quotation: Receive itemized quote with unit price, lead time, and available inspection reports within 24 business hours.
- Step 3 – Order Confirmation: Purchase order accepted via email; proforma invoice issued for payment processing.
- Step 4 – Quality Check & Dispatch: Pre-shipment inspection completed; tracking number and shipping documents (packing list, COC, commercial invoice) provided.
- Step 5 – Delivery: DHL / FedEx / UPS express or freight forwarding — worldwide delivery supported. Lead time: 3–7 business days (stock items).
Technical FAQ
Q: Is the 4305A compatible with Tricon v9 and v10 chassis?
A: Yes. The 4305A is backward compatible with Tricon v9.x, v10.x, and v11.x main chassis configurations. Confirm your chassis revision with our technical team if uncertain.
Q: Can the 4305A be replaced online (hot-swap) without a safety system shutdown?
A: Yes, the Tricon TMR architecture supports online module replacement. The remaining two processor legs maintain the 2oo3 voting function during the swap. Follow Triconex hot-swap procedures in the Tricon System Planning and Installation Guide.
Q: What firmware version is pre-loaded?
A: Firmware version is documented per unit at time of inspection. Contact us to specify a required firmware revision for your TriStation 1131 version compatibility.
Q: Do you provide a warranty?
A: Yes. Konmask.com provides a 90-day functional warranty on all tested/refurbished units and a 30-day DOA warranty on new surplus units. Extended warranty available on request.
Q: Can you supply multiple units for a plant-wide spares program?
A: Yes. Volume pricing and blanket purchase order arrangements are available. Contact our B2B procurement desk for framework agreement terms.
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Contact: support@konmask.com | +0086 19859288691
