TRICONEX PLM3900N Programmable Logic Module

The Triconex PLM3900N is a Programmable Logic Module (PLM) from the Tricon v9–v11 safety system by Schneider Electric. It is designed for high-integrity, fault-tolerant control in critical industrial applications. Below are its key technical parameters:

General Specifications:

• Manufacturer: Schneider Electric (formerly Triconex)
• Model: PLM3900N
• Series: Triconex Tricon v9, v10, v11
• Type: Programmable Logic Module (PLM)
• Function: Executes safety logic in Triple Modular Redundant (TMR) architecture

Performance Parameters:

• Processor: Triple redundant 32-bit microprocessors
• Execution Speed: High-speed deterministic execution for critical safety applications
• Memory:
  • Program Memory: Configurable (varies based on firmware)
  • Non-volatile Storage: For retaining logic and configuration

I/O Compatibility:

• Supports: Digital & Analog I/O modules (via Triconex backplane)
• Communication Protocols:
  • TriBus (TMR communication bus)
  • Modbus TCP/IP (optional)
  • Ethernet/IP (optional, depending on configuration)

Redundancy & Fault Tolerance:

• TMR Architecture: 3 independent channels for fault tolerance
• Voting Mechanism: 2-out-of-3 voting for error detection and correction
• Diagnostics: Continuous self-testing and fault reporting

Environmental & Electrical:

• Operating Temperature: Typically 0°C to 60°C (32°F to 140°F)
• Humidity: 5% to 95% (non-condensing)
• Power Supply: Typically 24V DC (depends on chassis configuration)

Certifications & Compliance:

• Safety Standards:
  • IEC 61508 (SIL 3)
  • TÜV Certified
• Industry Compliance:
  • ATEX (for hazardous environments, if applicable)
  • NEMA/UL (varies by installation)

Applications:

• Safety Instrumented Systems (SIS)
• Emergency Shutdown Systems (ESD)
• Fire & Gas Systems (FGS)
• Turbine Control
• Critical Process Shutdown

Compatibility:

• Works with Tricon v9, v10, v11 chassis
• Programmed using Tristation 1131 (IEC 61131-3 compliant)