Product Details
The Triconex AI3281 is an 8-channel analog input module engineered for precise sensor data acquisition within industrial automation networks. Operating on a nominal 24 VDC power supply, it features a wide input range of -10 V to +10 V and includes 2 integrated relay outputs for auxiliary monitoring or switching functions.
Signal Processing and Acquisition
The module processes signals across 8 analog input channels at a fast sampling rate of 1 kHz. With high-resolution Analog-to-Digital conversion, it captures real-time dynamic process variables quickly and accurately, providing stable state data for monitoring and control applications.
Communication and Installation
For system integration, the AI3281 supports RS-485 serial communication using the Modbus RTU protocol. Designed for panel mounting, the module features a compact form factor measuring 110 x 110 x 88 mm and weighs 0.5 kg, facilitating easy installation into standard control cabinets.
| Parameter | Specification |
|---|---|
| Model | AI3281 |
| Brand | Triconex |
| Product Type | Analog Input Modules |
| Input Channels | 8 |
| Input Range | -10 V to +10 V |
| Resolution | 16-bit |
| Sampling Rate | 1 kHz |
| Relay Outputs | 2 |
| Operating Voltage | 24 VDC |
| Communication Protocol | Modbus RTU (RS-485) |
| Operating Temperature | -40 deg C to +85 deg C |
| Operating Humidity | 0% to 95% RH non-condensing |
| Dimensions | 110 x 110 x 88 mm |
| Weight | 0.5 kg |
Frequently Asked Questions
Q: What input signal range and resolution are supported by the Triconex AI3281?
A: The module supports an analog input range of -10 V to +10 V with 16-bit signal resolution.
Q: Which communication protocol does the AI3281 module use for network integration?
A: It supports Modbus RTU protocol over an RS-485 serial interface.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.