Product Details
Configured for discrete signal acquisition in Tricon safety system platforms, the Triconex PI2381 (7400221-100 Digital Input Baseplate Module) provides direct physical/electrical execution of digital signal interfacing for input modules.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PI2381 / 7400221-100 |
| Brand | Triconex |
| Dimensions | Standard Tricon baseplate form factor |
| Operating Temp | Industrial standard range |
| Input Voltage Range | 5 VDC to 125 VDC |
| Input Impedance | 10 kOhm (typical) |
| Input Current | 5 mA (typical), 20 mA (maximum) |
TMR Safety System and Galvanic Isolation
The Triconex PI2381 is designed to support the TMR 2oo3 architecture within Triconex safety controllers. The baseplate module serves as the physical interface layer, providing necessary signal routing and terminal point connections for digital input modules. It incorporates galvanic isolation to ensure that field-side input signals remain decoupled from the system backplane, mitigating the impact of electrical transients and ground noise. In compliance with SIL3 certification requirements, this module supports fail-safe state execution; in the event of an input circuit path breach or connectivity failure, the baseplate ensures that the associated input modules can initiate a diagnostic fault report to the logic solver, maintaining overall system integrity.
Frequently Asked Questions
Q: Is the PI2381 7400221-100 module compatible with all Tricon digital input modules?
A: The baseplate is designed for specific input module series. Verify compatibility with the module part numbers supported by the Triconex system documentation to ensure proper pin-to-pin alignment and voltage rating matching.
Q: Does this baseplate module require external maintenance or testing?
A: As a passive interface component, the baseplate requires periodic inspection of terminal connections and secure fastening. During system maintenance, ensure all field wiring terminations are tightened to specified torque settings to prevent intermittent signal loss.
Field Installation Guidelines
- Mount the PI2381 baseplate securely within the Tricon chassis using the provided mounting hardware.
- Ensure the baseplate backplane connector is clean and free of debris prior to engaging the digital input module.
- Terminate field signal wiring to the designated screw terminals, ensuring that input voltage levels do not exceed the 125 VDC maximum rating.
- Route field input cables through dedicated cable trays, maintaining separation from high-power AC lines to reduce electromagnetic interference.
- Perform a full point-to-point loop check after installation to verify signal integrity from the field device to the logic solver software.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.





























