Description
-
BrandTriconex
-
Model4211
-
Product NameRemote I/O Extender Module
-
Place of OriginUnited States
-
HS Code85371011
-
Dimensions348 mm × 311 mm × 35 mm
-
Weight2.1 kg
-
Operating Temperature‑40 °C to +75 °C
-
Storage Temperature‑100 °C to +120 °C
-
Power Supply16‑32 V DC
-
Warranty12 year
-
Product Statusnew brand
Triconex 4211 Compatible System and I/O Specifications
The Triconex 4211 is a remote I/O extender module built with Triple Modular Redundancy (TMR) technology. It offers full compatibility with Tricon Safety Instrumented Systems (SIS) chassis and backplanes, and supports hot-swap replacement to ensure non-stop system operation.
Compatible System
Compatible Controllers: Tricon 8100, 8110 and 8120 safety controller series
Backplane Bus: Tricon proprietary I/O backplane bus
Safety Certification: SIL 3 certified, suitable for ESD and Fire & Gas (F&G) safety loop applications
Communication Interface: Tricon I/O bus, enabling extended remote I/O network layout and flexible system expansion
Installation Feature: Designed for standard Tricon chassis slots with hot-swappable capability
Input Specifications
Signal Type: Digital Input (DI), compatible with 24 VDC field discrete sensors
Operating Voltage: 24 VDC nominal, with a continuous operating range of 18 VDC to 30 VDC
Isolation Performance: Galvanic isolation between field terminals and system internal circuits
Diagnostic Function: Built-in detection for channel open-circuit and short-circuit faults; independent LED indicators for real-time channel status display
Output Specifications
Signal Type: Digital Output (DO) with solid-state drive design
Output Voltage: 24 VDC nominal
Output Mechanism: TMR voting output to guarantee reliable safety interlock control
Load Capacity: Capable of driving on-site solenoid valves, alarm indicators and various safety actuators
Diagnostic Function: Real-time output circuit condition monitoring, with fault signals reported to the host controller
General Technical Parameters
Operating Temperature: -40℃ to +70℃
Power Consumption: 3.5W to 8W (typical)
Industry Certification: TÜV certified, compliant with IEC 61508 SIL 3 safety standards
Typical Applications: Emergency Shutdown Systems (ESD) and Fire & Gas (F&G) systems for oil, gas, petrochemical and power generation industries
Triconex 4211 Wiring Method
The Triconex 4211 is a Remote Expansion Module (RXM) designed for Tricon Safety Instrumented Systems (SIS). This module features no direct field I/O terminal interfaces for on-site device wiring. Chassis-to-chassis system communication is established via optical fiber links, while all field sensors and actuators are wired to local I/O modules integrated within the remote RXM chassis.
Backplane Connection
Install the Triconex 4211 module into the designated slot of the 8112 RXM chassis, ensuring full and secure engagement with the proprietary Tricon triple-modular redundant backplane connector on the rear side of the module. Configure the chassis address jumpers on the backplane, and ensure consistent jumper settings for A, B, and C triple channels to prevent communication anomalies and link failures. The module draws 24 VDC operating power from the chassis power supply unit, requiring no independent power wiring.
Optical Fiber Link (Triple Redundant A/B/C Channels)
The module front panel is equipped with three pairs of single-mode optical ports (TX-A/RX-A, TX-B/RX-B, TX-C/RX-C) to support TMR triplicated I/O bus data transmission. Only single-mode optical fiber cables are applicable, with a maximum transmission distance of 12 kilometers (7.5 miles). Follow standard cross-connection rules for wiring: connect the transmit (TX) port of the local module to the receive (RX) port of the peer remote module for each independent A/B/C channel. All three fiber pairs must be fully deployed to maintain complete triple modular redundancy of the system. The fixed communication baud rate is 375 kbps, matching the standard Tricon I/O bus transmission rate.
Remote Site Field Wiring
On-site 24 VDC discrete field devices, including digital sensors, solenoid valves and alarm indicators, are wired to dedicated digital I/O modules inside the remote RXM chassis instead of directly to the 4211 module. All field signal cables terminate on the terminal blocks of local I/O modules, which provide galvanic isolation between field circuits and the system backplane to enhance system anti-interference capability and operational safety. Shielded copper cables are mandatory for field signal transmission. Signal cables and power cables shall be routed separately to minimize EMI electromagnetic interference.
Grounding & ESD Requirements
The equipment chassis must be reliably connected to the plant safety grounding bus for protective earthing. Strict ESD protection measures must be implemented during module installation and fiber wiring operations, including wearing certified anti-static wrist straps. Keep all optical fiber connectors clean and intact, and avoid fiber bending beyond the minimum bend radius to prevent internal fiber damage and signal attenuation.
Diagnostic Indicator Reference
The front panel integrates multiple status LED indicators, including PASS, FAIL, ACTIVE, TX, RX1, RX2 and RX3. After completing all wiring and installation work, verify the status of TX/RX indicators to confirm the normal operation and communication health of all optical fiber links.
.jpg)
