Description

The 2058 is a 16-channel analog output(AO)module from Schneider Electric’s TRICONEX safety system portfolio,engineered for use in Triple-Modular Redundant(TMR)architectures.As a core I/O component of the Tricon platform,it delivers fail-safe,high-integrity 4–20 mA signals to final control elements—ensuring precise and reliable actuation in safety-critical processes.

Application Scenarios

At a LNG export terminal in Qatar,a critical emergency depressurization(EDP)system relied on legacy analog output cards prone to drift and single-point failures.After upgrading to TRICONEX 2058,operators gained true TMR-protected signal delivery to ESD valves:each output channel is independently generated and voted across three isolated lanes,eliminating common-mode faults.During a simulated gas leak test,all 12 valves actuated within 120 ms—well under the 200 ms safety window—validating the system’s SIL 3 compliance.The 2058’s real-time diagnostics also flagged a failing field device during routine checks,preventing a potential spurious trip that could have cost$2M in lost throughput.

Parameter

Main Parameters Value/Description

Product Model 2058

Manufacturer Schneider Electric(TRICONEX)

Product Category Triple-Modular Redundant(TMR)analog output module

Output Channels 16 independent channels

Output Signal 4–20 mA(sink mode),0–20 mA optional via software

Load Capability Up to 750Ωper channel at 24 VDC

Accuracy±0.1%of full scale at 25°C

Isolation Channel-to-channel and channel-to-backplane isolation(2500 Vrms)

Update Rate 100 ms typical(configurable via TriStation 1131)

Diagnostics Per-channel open-circuit,short-circuit,and out-of-range detection

Operating Temperature 0°C to+60°C(IEC 60068-2)

Mounting Tricon chassis slot(compatible with v10/v11 systems),hot-swappable

Note:TMR architecture ensures no single hardware fault causes unsafe output;hot-swap capability enables replacement without system shutdown.

Technical Principles and Innovative Values

Innovation Point 1:True Triple-Modular Redundancy(TMR)—each of the 16 outputs is generated by three independent microprocessors,compared via hardware voter,and only released if≥2 agree.This eliminates undetected dangerous failures,a key requirement for SIL 3 per IEC 61508.

Innovation Point 2:Per-channel diagnostic coverage exceeds 99%,detecting open wires,short circuits,and sensor drift in real time—information accessible via TriStation 1131 or OPC UA for predictive maintenance.

Innovation Point 3:Fully hot-swappable design allows replacement during live operation,critical for continuous processes like ethylene crackers or nuclear cooling systems where downtime is unacceptable.

Innovation Point 4:Tight output accuracy(±0.1%)and low thermal drift ensure consistent valve positioning over time—reducing process variability and improving product quality in fine chemical synthesis.

Innovation Point 5:Seamless integration with Tricon’s deterministic safety application logic(IEC 61131-3)via TriStation 1131,enabling complex safety strategies like staged shutdowns or load shedding directly tied to analog output states.

Application Cases and Industry Value

In a North Sea offshore platform,the 2058 was deployed to drive 48 subsea Christmas tree actuators as part of a new HIPPS(High-Integrity Pressure Protection System).Traditional 1oo2 systems had suffered nuisance trips due to analog card noise;the TRICONEX 2058’s TMR design eliminated false triggers while meeting DNV-ST-F101 and API 14C standards.Over three years of operation,zero spurious trips were recorded,and maintenance intervals extended from 6 to 18 months thanks to built-in diagnostics.The platform’s safety integrity level was formally upgraded from SIL 2 to SIL 3,enabling higher production rates under regulatory approval.

Related Product Combination Solutions

TRICONEX 2057:16-channel analog input counterpart to 2058,for complete TMR I/O loops

TRICONEX 2059:8-channel high-current(up to 1 A)digital output module for solenoid banks

TRICONEX 2056:32-channel digital input module with TMR validation

TRICONEX 2052:Communication module for Modbus/TCP or HART integration

TRICONEX 2050:Main processor module(MP)for Tricon v10/v11 chassis

TRICONEX 2060:Enhanced analog output module with HART support(successor candidate)

Schneider TriStation 1131:Official engineering suite for configuration,simulation,and diagnostics

TRICONEX 2058-RMA:Refurbished unit with full functional retest and 12-month warranty

These modules form a cohesive,certified safety I/O layer—ideal for new SIS builds or migration from older Triconex 3500/3700 systems.

Installation,Maintenance,and Full-Cycle Support

Installing the 2058 requires insertion into a powered Tricon chassis with compatible backplane firmware(v4.1+recommended).No DIP switches are needed—channel configuration is handled entirely in TriStation 1131,including range scaling,filtering,and fail-safe state(e.g.,0 mA or last good value).Wiring uses standard terminal blocks with shielded twisted-pair cables;grounding must follow TRICONEX EMC guidelines to maintain SIL integrity.

Maintenance is simplified by LED status indicators(green=OK,red=fault)and detailed event logs.During replacement,the hot-swap feature ensures safety logic remains active—no need for plant shutdown.Every 2058 we supply undergoes rigorous testing:full channel calibration,TMR voter validation,and 48-hour burn-in under thermal stress.Units include original labeling,test reports,and compatibility verification for your specific Tricon chassis revision.We provide 12-month warranty,firmware version guidance,and remote support from engineers certified in Triconex SIS lifecycle management.

Contact us for a customized solution—whether you’re commissioning a new refinery SIS,replacing obsolete I/O,or securing critical spares for your existing TRICONEX infrastructure.With global sourcing and deep domain expertise,we ensure your safety system stays online,compliant,and future-ready.

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