Product Details
The Triconex 3503 is a 32-point digital input module engineered to support safety-critical control systems with high reliability and speed. It processes discrete field signals while maintaining stable operation in demanding industrial environments.
Signal Processing and Electrical Characteristics
This module manages 32 digital input channels operating at a nominal input voltage of 24 VDC across a voltage range of 15 V to 30 VDC. It exhibits an input impedance greater than 30 kohm without a baseplate and approximately 3 kohm with a baseplate, while drawing a typical input current under 1 mA. Signal switching transitions maintain an input delay of less than 10 ms for both on and off states.
Diagnostics and Environmental Specifications
Integrated Forced Value Diagnostics (FVD) execute with a detection time of less than 2 ms per test to ensure continuous signal validity. Designed for wide environmental tolerance, the unit functions across an operating temperature range of -40 deg C to +70 deg C and a storage temperature range of -55 deg C to +85 deg C, providing IP54 splash-proof protection when installed in a cabinet.
| Parameter | Specification |
|---|---|
| Model | 3503 |
| Brand | Triconex |
| Product Category | Digital Input Modules |
| Input Channels | 32 digital inputs |
| Nominal Input Voltage | 24 VDC |
| Voltage Range | 15 V to 30 VDC |
| Input Impedance | > 30 kohm (without baseplate); ~3 kohm (with baseplate) |
| Input Delay | < 10 ms (on/off switching) |
| Input Current | Typically < 1 mA |
| Diagnostics | Forced Value Diagnostics (FVD) |
| Detection Time | < 2 ms per test |
| Operating Temperature | -40 deg C to +70 deg C |
| Storage Temperature | -55 deg C to +85 deg C |
| Protection Level | IP54 (cabinet-installed) |
| Dimensions | 12.5 cm x 17 cm x 14.2 cm |
| Weight | 1.42 kg |
Frequently Asked Questions
Q: What is the input impedance of the Triconex 3503 module?
A: The input impedance is greater than 30 kohm without a baseplate and approximately 3 kohm when installed with a baseplate.
Q: How fast do the built-in module diagnostics execute?
A: The Forced Value Diagnostics (FVD) perform checks with a detection time of less than 2 ms per test.
Q: What are the environmental operating limits for this digital input module?
A: It is rated for an operating temperature range of -40 deg C to +70 deg C and provides IP54 protection when housed within an enclosure.
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.





























