Description
The Toshiba USIO21 is a high-speed universal serial input/output communication interface module designed for advanced programmable logic controller (PLC) networks and distributed control system (DCS) architectures. Serving as a dedicated data transmission bridge, this module facilitates deterministic real-time communication between supervisory control units and various intelligent peripheral field networks, peripheral drives, and terminal devices.
Product Datasheet
- Model Number: USIO21
- Series: V-Series / PROSEC Control Platforms
- Manufacturer: Toshiba
- Product Type: Universal Serial I/O Interface Module
- Communication Channels: Multi-channel isolated serial lines
- Supported Protocols: Configurable serial industrial fieldbus protocols
- Dimensions: 135 mm x 35 mm x 115 mm
- Weight: 0.48 kg
- Country of Origin: Japan

TOSHIBA USIO21

TOSHIBA USIO21

TOSHIBA USIO21

TOSHIBA USIO21
Application Fields
This serial interface processing module is heavily utilized across diverse automation environments requiring reliable data synchronization and high noise immunity. Core industrial sectors include:
- Automotive Manufacturing Plants: Coordinating distributed monitoring data between specialized testing rigs and main assembly line PLC networks.
- Water Treatment Facilities: Connecting remote sensory telemetry networks, chemical metering pumps, and localized flow meters to the central control loop.
- Steel Processing Mills: Handling diagnostic data routing from distributed variable frequency drives (VFDs) and specialized position sensors.
- HVAC and Building Management Systems: Linking centralized ventilation, heating, and cooling controllers to decentralized regional monitoring points.
Product Instructions
Please follow these standard industrial engineering practices during installation and commissioning to ensure proper operation:
- Rack Installation: Power down the PLC base unit before installing the module. Slide the USIO21 card carefully into its designated slot along the chassis guide rails until the backplane connector seats completely. Secure the module using the built-in latch or mounting screws.
- Serial Wiring Allocation: Connect your communication cables to the front interface ports. Always use high-quality shielded twisted-pair (STP) cabling specified for industrial serial applications to minimize signal degradation from ambient electrical noise.
- Shield Grounding: Connect the communication cable shields to a solid, low-impedance functional earth terminal at a single point to prevent ground loop currents from interfering with data transmission.
- Software Configuration: Access the Toshiba programming utility to assign station addresses, select communication baud rates, configure parity bits, and define data length parameters matching the downstream field hardware.
Questions and Answers
Q: What do the onboard diagnostic status LEDs on the front panel display? A: The front panel includes dedicated indicators that monitor module status and data traffic. They provide immediate visual feedback regarding internal power stability, active data transmission (TX), data reception (RX), and localized communication or hardware faults.
Q: Can the communication parameters on the USIO21 be adjusted for different field setups? A: Yes, the module features flexible configuration properties via software, allowing system integrators to easily modify baud rates, port allocations, and transmission modes to match the specific operational requirements of varied external devices.
Q: How does the module maintain performance in high-interference industrial areas? A: The USIO21 incorporates robust onboard galvanic isolation on its communication ports, which effectively separates internal processing logic from external line spikes and high-frequency electrical disturbances common on factory floors.
Q: How can I verify current stock levels, leading times, or get an official commercial quote for this module? A: To obtain up-to-date warehouse availability details, wholesale pricing structures, or specific shipping estimates for the TOSHIBA USIO21, please send your technical inquiry through our centralized commercial distribution gateway.
