TRICONEX 2750

Programmable Control Module (TMR, SIL3)

Official English Specification Manual (consistent format with 2651/2652/2658/2700)

1. General Description

2. Model Information

• Model: 2750

• Type: Programmable Control Module (TMR CPU)

• System Series: Triconex Tricon / Trident SIS

• Safety Level: SIL3 (IEC 61508)

• Certification: TÜV, FM, CSA

• Part Number: 3000105‑010

• Status: Active / In production

3. Main Features

• Triple Modular Redundancy (TMR): 3 independent processors, 2oo3 voting

• User Programmable: Supports C‑language & IEC 61131‑3 (TriStation 1131)

• Large I/O Capacity: Max 256 inputs / 128 outputs (digital+analog)

• Multi‑Protocol Communication: Modbus RTU/TCP, Ethernet, RS‑232, RS‑485

• Deterministic Execution: Fixed scan rate (1–10ms) for safety logic

• Full Diagnostics: Self‑test, fault isolation, voting mismatch alarm

• SOE Timing: 1ms resolution sequence‑of‑events logging

• Hot‑Swappable: Online replacement without shutdown

4. Technical Parameters

4.1 CPU & Performance

• Architecture: 3× 32‑bit RISC processors (TMR)

• Execution Rate: 1ms–10ms configurable scan

• Memory: 8MB program / 8MB data (redundant)

• Programming: C‑language, LD/FBD/ST (TriStation 1131)

4.2 I/O Capacity

• Digital Inputs: 256 max (24VDC)

• Digital Outputs: 128 max (24VDC/relay)

• Analog Inputs: 64 max (4–20mA / 0–10V)

• Analog Outputs: 32 max (4–20mA / 0–10V)

4.3 Communication

• Ports: 2× Ethernet, 2× RS‑485, 1× RS‑232

• Protocols: Modbus TCP/RTU, Tricon Peer‑to‑Peer

• Speed: Ethernet 10/100Mbps; RS‑485 115.2kbps

4.4 Redundancy & Safety

• Architecture: TMR (3‑channel independent)

• Voting: 2oo3 fault‑tolerant

• Diagnostic Coverage: >99%

• System Availability: 99.999%

4.5 Environmental

• Operating Temperature: −20°C to +60°C

• Storage Temperature: −40°C to +85°C

• Relative Humidity: 5%–95% non‑condensing

• Vibration: 5–200Hz, 1g

4.6 Power & Physical

• Backplane Power: 5VDC / 3.3VDC

• Power Consumption: ≤25W

• Dimensions: 197mm × 287mm × 170mm

• Weight: ~4.5kg

5. Function Overview

• Executes SIL3 safety logic for ESD, BMS, FGS, and interlocks

• Processes up to 256 inputs / 128 outputs (digital+analog)

• Performs 2oo3 voting on all internal logic and I/O data

• Communicates with DCS, HMI, and other SIS nodes via multi‑protocol ports

• Logs SOE with 1ms resolution for incident analysis

• Supports redundant 2750 pairs for high‑availability systems

6. LED Indicators

• PWR (Green): 5VDC backplane power OK

• RUN (Green): Module active, TMR sync normal

• FAULT (Red): CPU/voting/I/O fault

• COMM (Yellow): Network activity

• FORCE (White): I/O forced state active

7. Installation & Configuration

1. Insert 2750 into Trident baseplate CPU slot

2. Connect Ethernet/serial cables to front‑panel ports

3. Use TriStation 1131 to:

   • Download safety logic (C or IEC 61131‑3)

   • Configure I/O mapping & communication

   • Set scan rate (1–10ms) & fault thresholds

4. Verify: PWR+RUN green; no FAULT red; COMM flashes on traffic

8. Typical Applications

• ESD Emergency Shutdown Systems (oil & gas, petrochemical)

• BMS Burner Management Systems (power, refining)

• FGS Fire & Gas Systems (process plants)

• Turbine/Generator Safety Controllers (power)

• SIL3 Safety Interlock Controllers (chemical, pharmaceutical)

9. Maintenance

• Hot‑swap faulty 2750 without downtime

• Check Ethernet/serial cables and port LEDs

• Review fault logs & SOE via TriStation

• Keep firmware updated for latest diagnostics

10. Compatibility

• Compatible Systems: Triconex Tricon, Trident SIS

• Configuration Software: TriStation 1131 (v4.0+)

• Matching I/O Modules: 2700 (DI), 2701 (DO), 2751 (AI), 2752 (AO)

• Model: 2750

• Description: TMR Programmable Control Module, SIL3, 256In/128Out, Multi‑Protocol