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TRICONEX 2101 Digital Input Module
Product Overview
The TRICONEX 2101 is an 8-channel digital input module designed for TRICONEX’s Tricon Triple Modular Redundancy (TMR) safety systems, a cornerstone of safety instrumented systems (SIS) in industrial automation. This module serves as a critical interface between field devices—such as limit switches, proximity sensors, and emergency stop buttons—and the Tricon controller, converting on/off signals from these devices into digital data that the controller can process. This ensures real-time monitoring of safety-critical conditions in high-risk industrial processes.
As a key component of the Tricon TMR architecture, the TRICONEX 2101 integrates seamlessly with Tricon racks and processors like the TRICONEX 3008, ensuring redundant signal processing to eliminate single points of failure. It supports 24 V DC input signals, a standard in industrial settings, making it compatible with most digital sensors and switches used in oil refineries, chemical plants, and power stations. The module communicates with the controller via the TMR bus, ensuring timely data transmission essential for triggering safety actions, such as emergency shutdowns.
Built to withstand harsh industrial environments, the TRICONEX 2101 operates in temperatures from -40°C to 70°C and humidity up to 95% (non-condensing). It features channel-to-backplane isolation (250 V AC) to resist electrical noise and ground loops, ensuring reliable signal detection even near large motors or high-voltage equipment. With SIL 3 certification (IEC 61508), it meets the highest safety standards, making it ideal for critical applications where failure could lead to harm or financial loss. Though a legacy model, the TRICONEX 2101 remains vital for maintaining older Tricon systems, offering compatibility with both legacy and modern sensors to avoid costly full-system upgrades.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 2101 |
| Manufacturer | TRICONEX |
| Product Type | 8-Channel Digital Input Module (Tricon TMR System) |
| Number of Channels | 8 (isolated) |
| Input Voltage | 24 V DC ±10% |
| Input Type | Dry contact or voltage (sinking/sourcing) |
| Isolation | 250 V AC (channel-to-backplane) |
| Physical Dimensions | 160 mm (L) × 100 mm (W) × 35 mm (D) |
| Weight | 0.5 kg |
| Operating Temperature | -40°C to 70°C |
| Humidity Tolerance | 5%–95% (non-condensing) |
| Safety Integrity Level | SIL 3 (IEC 61508) |
| Mounting Type | Tricon rack mount (compatible with Tricon 1000/2000 racks) |
TRICONEX 2101
Related Products
- TRICONEX 3008: The Tricon TMR main processor module that processes digital input data from the 2101 to execute safety logic in emergency shutdown (ESD) systems.
- TRICONEX 3604E: A 4-channel digital output module that pairs with the 2101 to execute control actions (e.g., activating shutdown valves) based on input signals from the 2101.
- TRICONEX 2102: A 16-channel digital input module, offering higher input capacity than the 2101 for systems requiring more sensors.
- TRICONEX 8111C: A communication module that transmits data from the 2101 to SCADA systems, enabling remote monitoring of sensor states (e.g., limit switch positions).
- TRICONEX 3721: An analog input module that complements the 2101 in hybrid systems, combining digital and analog data for comprehensive process oversight.
- TRICONEX 9662: A power supply module that provides 24 V DC to the 2101 and other Tricon components, ensuring stable operation.
Main features and advantages
Triple Modular Redundancy (TMR): The 2101 uses TMR technology, with three independent channels processing each input signal simultaneously. If one channel fails, the other two validate and use the correct data, ensuring no loss of monitoring in safety-critical applications—such as tracking emergency stop buttons in a chemical reactor, where a missed signal could lead to accidents.
8-channel capacity: With 8 isolated input channels, the 2101 can monitor 8 separate field devices—such as proximity sensors on a conveyor line—with a single module. This reduces the number of modules needed in a system, saving space in Tricon racks and simplifying wiring, which is especially valuable in compact control cabinets on offshore platforms.
24 V DC compatibility: The module accepts 24 V DC signals, the standard voltage for most industrial digital sensors. This means it can connect directly to limit switches, photoelectric sensors, and emergency stops without additional signal converters, cutting hardware costs and setup time.
SIL 3 certification: Certified to IEC 61508 SIL 3, the 2101 meets the highest safety standards, making it suitable for high-risk environments—such as oil refineries or nuclear power plants—where reliable input monitoring is critical to preventing harm to personnel or the environment.
Rugged industrial design: The 2101 operates in temperatures from -40°C to 70°C, making it suitable for extreme environments—from cold storage facilities to steel mills. It also resists humidity, ensuring reliability in damp settings like water treatment plants. Its 250 V AC channel-to-backplane isolation protects against electrical noise, ensuring accurate signal detection near large motors or welding equipment.
Easy integration: Designed for Tricon rack mounting, the 2101 installs quickly without special tools. It connects seamlessly to Tricon processors and other modules via the backplane, requiring minimal configuration via Tricon’s TriStation software. This simplifies upgrades to existing systems, reducing downtime during installation.
TRICONEX 2101
Installation and maintenance
Pre-installation preparations: Verify the 2101 is compatible with your Tricon rack (e.g., Tricon 2000) and power supply (24 V DC ±10%). Power off the system and disconnect all power sources. Align the module with an empty I/O slot in the rack and push firmly until it clicks into the backplane. Connect field devices to the terminal block, matching each device to a channel and ensuring correct polarity (positive to signal terminal, negative to common terminal). Secure wires with appropriate torque (0.5–0.6 Nm) to prevent loose connections. Power on the system and check the module’s status LED—solid green indicates normal operation.
Maintenance suggestions: Inspect the 2101 quarterly. Wipe dust from the module’s surface with a dry cloth to prevent overheating. Check terminal screws to ensure they are tight—loose wires can cause intermittent signal loss (e.g., a sensor appearing “off” when it is “on”). Use Tricon’s diagnostic software to monitor channel health; if a channel shows errors, test the connected sensor first. If the sensor works, power off the system, remove the 2101, and reinsert it to fix potential backplane connection issues. Store a spare 2101 in a dry, cool area (10–30°C) to enable quick replacement during failures, minimizing process interruptions.
Application fields
The TRICONEX 2101 is widely used in industries where reliable digital input monitoring is critical for safety and efficiency:
- Oil and gas: In onshore refineries, the 2101 monitors 8 pressure switch states in crude oil pipelines. If a switch detects high pressure (indicating a potential leak), the Tricon controller uses this data to trigger a shutdown via an output module like the 3604E.
- Chemical processing: In a fertilizer plant, the 2101 tracks 8 limit switches on a reactor door. It ensures the reactor cannot start if any door is open, preventing personnel from being exposed to hazardous chemicals.
- Power generation: In coal-fired plants, the module monitors 8 temperature switch states in a turbine’s cooling system. If a switch detects overheating, the controller shuts down the turbine to prevent damage, using data from the 2101 to confirm the issue.
- Water treatment: In a wastewater plant, the 2101 detects 8 float switch positions in filtration tanks. It sends data to the controller, which starts or stops pumps to maintain optimal water levels, ensuring efficient treatment without overflow.
TRICONEX 2101
Product guarantee
Our company offers a one-year quality warranty service for the 2101, covering hardware malfunctions not caused by human factors. During the warranty period, if the product shows abnormal performance or functional failure, we will provide replacement services. In addition, for discontinued models or urgent demands, relying on our global supply chain network, we can quickly respond to customers’ procurement needs for scarce spare parts, and provide reliable services to support the continuous and stable operation of industrial systems.
Our company is a leading enterprise in the industrial control industry, established in 2007, has been 17 years. We are an import and export trade distribution company, mainly selling major brands of industrial control parts, there are many unpopular discontinued models, with a large stock. Our company has the advantage of supply channels, a large number of spot, to meet the needs of customers anxious to find spare parts. Our main PLC module, DCS card, ESD system card, vibration monitoring system card, turbine control system module, gas generator spare parts, instruments and other products distribution trade.
For inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com.
