Description
Product Overview
The TRICONEX 3503EN is a hot‑swappable digital input module designed for Tricon triple‑modular‑redundant safety system. It provides 32 channels of 24VDC discrete input to acquire on‑site switch‑state signals. Adopting TMR hardware voting architecture, the module realizes fault‑tolerant signal collection, single‑channel hardware failure will not cause system shutdown. It can be plugged and replaced online without system shutdown, and reports channel faults, module faults and backplane communication abnormalities to the host controller. This module is widely used for safety‑instrumented system spare‑part replacement and retrofits in petrochemical, oil‑gas and power‑plant industries.
Series
Tricon V9 series safety‑instrumented system hardware, adopts triple‑modular‑redundant fault‑tolerant design, including CPU, digital I/O, analog I/O and communication modules, used for SIL3‑level safety interlock and emergency shutdown (ESD) applications.
Product Features
- 32‑channel 24VDC digital input for field switch‑value signal acquisition
- Triple Modular Redundancy (TMR) fault‑tolerant architecture, supports SIL3 safety‑level application
- Hot‑swap support, allows module replacement while the safety system keeps online running
- Comprehensive hardware self‑diagnosis: channel open‑circuit fault, module hardware failure, backplane communication fault detection
- Multiple LED status indicators for each channel and module overall health status for quick field troubleshooting
- Strict industrial safety hardware design, adapts to long‑term continuous operation in process‑control cabinets
- Works cooperatively with Tricon main processor and corresponding backplane chassis
Product Parameters
表格
| Item | Parameter |
|---|---|
| Model | 3503EN |
| Module Type | TMR Digital Input Module |
| Number of Input Channels | 32 points |
| Field Signal Level | 24 VDC |
| Safety Architecture | Triple Modular Redundancy (TMR) |
| Safety Level | SIL 3 capable |
| Hot‑swap | Supported |
| Diagnostics | Channel fault, module fault, communication fault; LED status indication |
| Compatible System | Tricon V9 SIS system backplane chassis |
| Operating Temperature | 0℃ ~ +60℃ |
Product Specifications
- Physical form: Plug‑in safety I/O module for Tricon chassis
- Condition: New surplus / Tested used (stock subject to real‑time confirmation)
- Warranty: 365‑day warranty for supplied units
- Shipment: In‑stock goods ship within 3 working days after payment
Function
Collects 24VDC discrete switch signals from field sensors and interlock devices; completes triple‑modular redundant signal voting processing; transmits valid input status to Tricon main controller; detects channel and module hardware faults and uploads alarm information to SIS operation station.
Purpose
Realize high‑reliability field discrete signal acquisition for Tricon safety instrumented system, provide input source for emergency shutdown ESD, fire‑gas protection and safety interlock logic.
Application Fields
‑ Petrochemical plant ESD safety interlock systems‑ Oil & gas on‑site SIS safety control cabinets‑ Thermal power‑plant safety protection system retrofits‑ Chemical process safety instrumented system renovation‑ Refinery Tricon SIS spare‑part replacement‑ Hazardous‑process industrial safety‑control projects
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TRICONEX 3503EN Tricon digital input module
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- Email: seren@ymgkplc.com
- Phone: +86 13313703791
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+86 13313703791
+86 13313703791
seren@ymgkplc.com



