Overview
Specification
| Parameter | Specification |
|---|---|
| Model | Triconex 4351B |
| Module Type | Communication Module |
| Redundancy | Triple Modular Redundant (TMR) |
| Bus Interface | Triconex proprietary high-speed backplane bus |
| Bus Cycle Time | Typical 10–20 ms depending on network load |
| Communication Protocols | MODBUS, Profibus DP, Ethernet, DeviceNet (depending on configuration) |
| Data Transfer Rate | Up to 12 Mbps on backplane bus; protocol-dependent for field networks |
| Input Voltage | 24 VDC ±10% |
| Power Consumption | Typical 5 W, max 7 W |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | –40°C to 85°C |
| Relative Humidity | 5–95% RH, non-condensing |
| Status Indicators | Multi-color LEDs for power, bus activity, communication status, and faults |
| Isolation | Galvanic isolation between communication ports and module logic |
| Mounting | Standard Triconex rack, hot-swappable |
| MTBF (Mean Time Between Failures) | >200,000 hours typical |
| Safety Certification | IEC 61508 SIL-3 / IEC 61511 compliant |
| EMC Compliance | EN 61000-6-2 / EN 61000-6-4 industrial immunity and emission standards |
| Network Topology Support | Star, Ring, or Line depending on protocol |
| Diagnostics Features | Fault logging, communication status monitoring, bus error detection, LED alerts |
| Connectors | Screw terminal or D-sub depending on field wiring requirements |
| Dimensions | Standard Triconex module size (height 130 mm × width 40 mm × depth 180 mm) |
| Weight | ~0.45 kg |
FAQ
A1: It operates within a Triple Modular Redundant (TMR) configuration for maximum reliability.
Q2: Which communication protocols are supported by this module?
A2: Depending on configuration, it supports MODBUS, Profibus, Ethernet, and DeviceNet.
Q3: Can the module be replaced while the system is running?
A3: Yes, the 4351B is hot-swappable for uninterrupted operation.
Q4: Is the 4351B suitable for SIL-3 applications?
A4: Yes, it meets IEC 61508 SIL-3 and IEC 61511 safety standards.
Q5: What is the typical power consumption of the 4351B?
A5: The module consumes approximately 5 W under normal operation
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