Product Overview
The TOSHIBA USIO21 is a versatile industrial I/O (Input/Output) module engineered by Toshiba—a trusted leader in industrial automation—to enable seamless data exchange between controllers and field devices in manufacturing, energy, and infrastructure systems. As a core connectivity component, the TOSHIBA USIO21 is designed to bridge the gap between central control units (e.g., Toshiba’s TOSLINE series PLCs) and sensors/actuators, supporting both digital and analog signal processing for real-time monitoring and control.
Optimized for industrial ruggedness, the TOSHIBA USIO21 operates reliably in harsh environments with temperature fluctuations, vibration, and electrical noise—critical for applications like automotive assembly lines, power plant auxiliary systems, or water treatment facilities. Its compact design and flexible mounting options simplify integration into existing control cabinets, while compatibility with industry-standard protocols ensures interoperability with third-party equipment. Whether used for expanding I/O capacity in legacy systems or building new automation setups, the TOSHIBA USIO21 delivers consistent performance to enhance operational efficiency and reduce downtime.
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Technical Specifications
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Value
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Product Model
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TOSHIBA USIO21
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Manufacturer
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Toshiba (Industrial Automation Division)
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Product Type
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Mixed-Signal Industrial I/O Module
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Compatible Controllers
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Toshiba TOSLINE PLC Series , third-party PLCs via standard protocols
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I/O Configuration
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16 digital inputs, 8 digital outputs, 4 analog inputs, 2 analog outputs
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Digital Input Signal
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24 V DC (sinking/sourcing, selectable); dry contact support
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Digital Output Signal
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24 V DC, 0.5 A per channel (short-circuit protected)
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Analog Input Range
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0-10 V DC / 4-20 mA DC (selectable per channel)
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Analog Output Range
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0-10 V DC / 4-20 mA DC (programmable)
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Communication Protocol
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Modbus RTU (RS-485), Ethernet/IP (optional)
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Operating Temperature
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-20°C to +60°C (-4°F to +140°F)
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Power Supply
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24 V DC (±10%), 5 W (max)
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Protection Rating
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IP20 (when installed in enclosed cabinet); IP65 optional (for panel-mounted use)
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Mounting Type
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DIN rail-mounted (35 mm standard)
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Certifications
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IEC 61131-2 (industrial I/O), CE (EMC compliance), RoHS
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Diagnostic Features
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Overcurrent protection, open-circuit detection, signal drift monitoring
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Key Features and Benefits
Mixed-Signal Flexibility for Diverse Applications
The TOSHIBA USIO21 combines 16 digital I/O channels (for on/off signals like limit switches or solenoids) and 6 analog channels (for continuous variables like pressure or temperature) in a single module—eliminating the need for separate digital and analog I/O cards. This mixed-signal design reduces cabinet space usage by up to 30% and simplifies wiring, making it ideal for applications requiring both discrete control (e.g., conveyor start/stop) and precision monitoring (e.g., tank level measurement). Analog channels support selectable ranges (0-10 V/4-20 mA), ensuring compatibility with most industrial sensors and transmitters.
Rugged Design for Industrial Reliability
Built to withstand demanding factory conditions, the TOSHIBA USIO21 features a reinforced plastic housing that resists vibration (10-500 Hz, 1.5 mm amplitude) and mechanical impact—critical for use near heavy machinery like stamping presses or industrial fans. Its wide operating temperature range (-20°C to +60°C) supports deployment in cold storage facilities (e.g., food processing) or warm manufacturing areas (e.g., plastic extrusion). The module also includes short-circuit protection on digital outputs and surge protection on analog inputs, preventing damage from electrical faults and extending service life.
Seamless Integration and Protocol Compatibility
The TOSHIBA USIO21 natively supports Modbus RTU (via RS-485) for communication with controllers, enabling easy integration into existing Modbus-based networks (e.g., SCADA systems for power distribution). An optional Ethernet/IP interface adds flexibility for high-speed data transfer in large-scale automation setups (e.g., automotive paint shops with multiple I/O modules). It is fully compatible with Toshiba’s TOSLINE PLCs, with plug-and-play configuration via Toshiba’s TOSVERT software—reducing commissioning time by allowing users to map I/O points, set alarm thresholds, and monitor status without specialized coding.
Proactive Diagnostics for Minimized Downtime
Equipped with built-in diagnostic tools, the TOSHIBA USIO21 continuously monitors channel health: it detects open circuits in analog sensors, flags overcurrent conditions in digital outputs, and alerts users to signal drift (e.g., a failing temperature sensor). Diagnostic data is transmitted to the controller or HMI in real time, enabling maintenance teams to address issues proactively—for example, replacing a faulty sensor before it causes a production halt. This reduces unplanned downtime by up to 40% compared to non-diagnostic I/O modules. Backed by a one-year warranty from Hainan Jinlin Mechanical & Electrical, the TOSHIBA USIO21 ensures long-term reliability for critical automation tasks.
Related Models
- TOSHIBA USIO22 – High-density variant of the TOSHIBA USIO21, with 32 digital I/O and 8 analog channels for large-scale applications (e.g., semiconductor fabs).
- TOSHIBA USIO21-A – Analog-only version of the TOSHIBA USIO21, featuring 8 analog inputs/outputs for precision measurement tasks (e.g., pharmaceutical batch processing).
- TOSHIBA USIO21-D – Digital-only model of the TOSHIBA USIO21, with 24 digital I/O channels for cost-sensitive discrete control (e.g., packaging machinery).
- TOSHIBA USIO21-IP65 – Waterproof variant of the TOSHIBA USIO21, rated IP65 for outdoor use (e.g., solar farm inverter monitoring).
- TOSHIBA USIO23 – Safety-certified upgrade of the TOSHIBA USIO21, compliant with EN ISO 13849-1 (PLd) for emergency stop control (e.g., industrial robot cells).
- TOSHIBA TOSLINE V60 – PLC controller paired with the TOSHIBA USIO21, optimized for seamless I/O integration in mid-sized automation systems.
- TOSHIBA USIO11 – Legacy predecessor of the TOSHIBA USIO21, with basic I/O functionality (discontinued, replaced by the more versatile USIO21).
Company & Service Highlights
As a certified partner of industry leaders like Toshiba, Tektronix, and GE, we provide genuine TOSHIBA USIO21 I/O modules and other critical industrial automation components. Our expertise spans discrete manufacturing (automotive, electronics), process industries (food & beverage, water treatment), and energy (solar, power generation)—where reliable I/O connectivity is vital to operational efficiency.
We prioritize pre-sales support: our Toshiba-trained technical team assists with compatibility checks (e.g., verifying integration with your TOSLINE PLC), I/O sizing (matching channels to your sensor/actuator count), and protocol selection (Modbus vs. Ethernet/IP). Post-sales, we offer remote troubleshooting, firmware updates, and on-site installation guidance—all backed by a one-year warranty on the TOSHIBA USIO21—to ensure your automation system runs smoothly.
If you cannot find the TOSHIBA USIO21 or other Toshiba industrial components you need, contact us immediately for personalized solutions.
Contact Information