COM0034 2RCA023019A0004C
Product Name
P0924AU is a TRICONEX Tricon Triple-Modular Redundant (TMR) Safety Digital Input Module (also known as TRICONEX P0924AU High-Integrity Safety I/O Module), a core safety-critical input component designed exclusively for TRICONEX TMR safety programmable logic controller (PLC) systems.
2. Product Description
The P0924AU module is an industrial-grade safety digital input module developed by TRICONEX (a Schneider Electric brand and global leader in industrial safety automation). It is engineered to deliver high reliability, fault tolerance, and real-time performance for safety-critical applications in process industries. As a key part of the TRICON TMR safety PLC system, its primary function is to collect digital signals from field safety devices—such as emergency stop buttons, safety interlock switches, fire/gas detectors, and door position sensors—ensuring accurate and secure transmission of safety-related status data to the TMR controller.
Adopting triple-modular redundant (TMR) architecture, the module eliminates single points of failure, meeting the most stringent safety standards including SIL 3 (IEC 61508) and PLe (ISO 13849-1). This makes it ideal for protecting personnel, equipment, and processes in high-risk environments. The module features a rugged industrial design with enhanced electromagnetic interference (EMI) resistance, wide temperature tolerance, and resistance to vibration and dust, enabling stable operation in harsh industrial conditions such as oil refineries, chemical plants, and power stations.
Seamlessly integrating with TRICONEX Tricon 1000/2000/3000/4000 series safety PLC systems, the P0924AU module supports critical safety functions including emergency shutdown (ESD), process interlocking, fire and gas (F&G) protection, and machine safety control. It is widely used in oil and gas, petrochemical, chemical processing, power generation, and pharmaceutical industries where uncompromised safety and reliability are non-negotiable.
3. Product Parameters
| Parameter Category | Specific Specifications |
|---|---|
| Product Type | TRICONEX Tricon TMR Safety Digital Input Module |
| Manufacturer | TRICONEX (a division of Schneider Electric) |
| Compatible Systems | TRICONEX Tricon TMR Safety PLC Systems (Tricon 1000/2000/3000/4000 Series) |
| Input Configuration | 16 Independent Isolated Safety Input Channels |
| Input Signal Type | Dry Contact, NPN Open Collector, PNP Open Collector (Configurable) |
| Rated Input Voltage | 24V DC (Nominal), 12V DC / 48V DC Optional (Upon Request) |
| Input Current (Active) | 5mA – 20mA per Channel |
| Input Response Time | ≤1ms (Maximum Latency from Channel to Controller) |
| Isolation Level | Channel-to-Channel: ≥500Vrms; Channel-to-System: ≥1000Vrms; Channel-to-Backplane: ≥1000Vrms |
| Safety Integrity Level | SIL 3 (IEC 61508 Ed. 2), PLe (ISO 13849-1 Cat. 4) |
| Power Supply Requirement | 24V DC ±10%, Redundant Dual Power Input Supported |
| Power Consumption | Typical: 10W; Maximum: 15W (24V DC Operation) |
| Operating Temperature | -40℃ to +70℃ (-40°F to +158°F) |
| Storage Temperature | -40℃ to +85℃ (-40°F to +185°F) |
| Relative Humidity | 5% – 95% RH (Non-condensing, IEC 60068-2-3) |
| Protection Class | IP20 (Designed for Cabinet Mounting) |
| Dimensions (W×H×D) | 130mm × 220mm × 75mm (5.12″ × 8.66″ × 2.95″) |
| Weight | Approximately 0.6kg (1.32 lbs) |
| Certifications | CE, UL, CSA, ATEX, IECEx, FM, KOSHA |
| Diagnostic Capabilities | Channel Open/Short Circuit Detection, Module Self-Diagnosis, Power Fault Detection |
4. Specifications
(1) Physical Specifications
- Mechanical Design: Modular form factor compatible with TRICONEX Tricon standard racks (3-slot, 6-slot, or 12-slot configurations), enabling seamless integration into existing safety PLC systems. The compact design optimizes space utilization in industrial control cabinets.
- Housing & Material: Flame-retardant industrial-grade plastic shell (UL 94 V-0 rating) with electromagnetic shielding coating, providing robust mechanical protection and resistance to EMI/RFI interference.
- Interface & Indicators: Equipped with spring-loaded terminal blocks for secure and tool-less wiring, simplifying installation and maintenance. Front-panel LED indicators include power status (PWR), module health (OK), channel activation (per-channel LEDs), and fault alarms (FAULT), enabling real-time visual monitoring.
(2) Functional Specifications
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Safety Input Performance
- 16 independent isolated channels support multiple input signal types (dry contact, NPN, PNP), ensuring compatibility with a wide range of field safety devices without additional adapters.
- High-speed signal acquisition with a response time of ≤1ms ensures rapid detection of safety events (e.g., emergency stop activation), minimizing reaction time for critical safety actions.
- Reinforced electrical isolation (≥500Vrms channel-to-channel, ≥1000Vrms channel-to-system) prevents cross-talk and electrical hazards, enhancing system reliability.
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Redundancy & Reliability
- TMR architecture integration: Works with the TRICON controller’s triple-modular redundant design to process input signals in three independent channels, voting on results to eliminate single points of failure.
- Comprehensive self-diagnostic functions: Continuously monitors module hardware (power supply, input circuits, backplane communication) and field wiring (open/short circuits), transmitting fault data to the controller for immediate alarm and troubleshooting.
- Hot-swappable capability: Supports hot-swap installation in compatible TRICON racks, allowing module replacement without shutting down the safety system—maximizing operational availability.
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System Integration & Configuration
- Seamless compatibility with TRICONEX Tricon safety PLC systems, supporting configuration via TRICONEX TriStation 1131 software (version 4.0 and above) for input type selection, channel mapping, and safety logic programming.
- Compliance with global safety standards (IEC 61508, ISO 13849-1) ensures regulatory compliance across international markets.
- Backplane communication: Utilizes the TRICON system’s high-speed backplane bus for synchronous data transmission with the controller, ensuring consistent safety logic execution.
(3) Application Specifications
- Applicable Systems: TRICONEX Tricon 1000/2000/3000/4000 Series TMR Safety PLC Systems, suitable for safety-critical control systems requiring fault tolerance and high integrity.
- Industry Applications: Oil and gas (upstream exploration, midstream pipelines, downstream refineries), petrochemical, chemical processing, power generation (thermal, nuclear, hydro), pharmaceutical, and food processing industries.
- Typical Use Cases: Emergency Shutdown (ESD) Systems, Fire & Gas (F&G) Protection Systems, Process Interlock Controls, Safety Door/Guard Monitoring, Machine Safety Interlocks, and Critical Equipment Protection.