1. Product Brief Introduction

2. TRICONEX 3805E Technical Parameters

• Output Channels: 8 independent analog output channels, each configurable and operable independently without mutual interference[4].
• Output Signal Range: Programmable, mainly supporting 4-20 mA current signal (with +6% over-range) and optional 0-5 VDC, 0-10 VDC voltage signals; configurable per channel to meet different actuator connection needs.
• Resolution & Accuracy: 12-bit resolution; accuracy better than ±0.25% of full scale (FSR) within 0°C to 60°C operating temperature range, ensuring high-precision signal output.
• Isolation: No channel-to-channel isolation, with common return and DC coupling; no isolated points, ensuring signal transmission stability.
• Environmental Adaptability: Operating temperature range of 0°C to 60°C; storage temperature range of -65°C to 85°C; designed with dustproof, waterproof and anti-vibration capabilities to adapt to harsh industrial environments.
• Power Consumption & Supply: Supported by external redundant power supply (24-42.5 VDC, maximum 1A per module), ensuring stable power supply and continuous operation.
• Other Specifications: Equipped with a 33 MHz 32-bit processor, 1MB RAM and 4MB flash memory; channel fault switching time < 10 ms (typical); over-range protection of +42.5 VDC (continuous); net weight of about 0.8-4 kg (varies by configuration); compact size (e.g., 9 cm × 9 cm × 9 cm or 16 × 16 × 12 cm); compatible with all series of Triconex redundant control systems.

3. TRICONEX 3805E Key Functions

• High-Precision Analog Output: Equipped with advanced signal processing circuits and digital filtering function to reduce noise and interference impact, ensuring high accuracy and low drift of analog output signals, which can maintain stable output values during long-term continuous operation.
• TMR Fault Tolerance: Adopts Triple Modular Redundancy (TMR) architecture, with three independent processors executing identical logic simultaneously; a single-point failure does not affect overall operation, achieving system availability of up to 99.999% and supporting two-channel fault tolerance.
• Comprehensive Self-Diagnosis & Alarm: Built-in complete real-time self-diagnostic mechanism and channel-level diagnostics, capable of continuously monitoring the working status of each output channel; timely sending fault alarm signals to the control system when abnormalities such as signal over-range, channel failure occur, facilitating quick fault location and troubleshooting.
• Online Hot Swap & Hot Standby: Supports online replacement (hot swap) without shutting down the controller, which is automatically recognized and resynchronized by the system to minimize production interruption; also supports hot standby modules to further improve system reliability and availability.
• Flexible Configuration & Integration: Each output channel can be independently configured for signal type and range; supports multiple communication protocols such as Modbus, Profibus and Ethernet, facilitating seamless integration with other devices or systems; can be quickly configured and debugged through dedicated Triconex configuration software, with modular design for easy installation, maintenance and expansion.

4. Working Principle