Product Details
The ABB DX571 1TNE968902R2302, also cataloged as the DX571 Digital Input/Output Modules, operates as a dedicated hardware component for discrete signal acquisition and relay actuation within ABB S500-eCo automation platforms. The unit processes 8 digital input channels with sink/source configuration alongside 8 electromechanical relay outputs rated for 120 to 240 VAC at 2 A using a 1-wire connection scheme.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DX571 (Order Code: 1TNE968902R2302) |
| Brand | ABB |
| Origin | Germany |
| Weight | 0.14 kg |
| Dimensions | 34 mm x 74 mm x 135 mm (W x H x D) |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | Powered via backplane bus and 24 VDC input supply |
| Digital Inputs | 8 DI (24 VDC, configurable sink/source) |
| Digital Outputs | 8 DO relay (120 to 240 VAC, 2 A) |
| Wiring Topology | 1-wire connection architecture |
| Product Type | Digital Input/Output Modules |
Firmware Flash Compatibility and I/O Density Scaling
The DX571 module integrates directly into the S500-eCo expansion bus, maintaining strict firmware flash compatibility across host CPU units. Its dual-function layout provides high I/O density scaling by fitting 8 discrete inputs and 8 relay outputs into a 34 mm module width. The internal backplane interface maintains high transmission velocity to execute real-time state updates without deterministic network timing jitter.
Frequently Asked Questions
Q: Can the relay outputs on the DX571 handle DC voltage switching loads?
A: The relay contact channels are rated primarily for 120 to 240 VAC at up to 2 A resistive load per point. Switching DC voltages above rated inductive thresholds requires external suppression diodes to prevent contact arc degradation.
Q: Is live module hot-swapping supported on the S500-eCo I/O bus?
A: No. The backplane logic power and 24 VDC field power supplies must be de-energized before mounting or removing the DX571 module to avoid communication bus errors and electrical contact damage.
Q: How are sinking and sourcing field inputs designated on the 8 DI channels?
A: The 8 digital inputs accept both sink (NPN) and source (PNP) field contact wiring. Polarity selection is established by wiring the common terminal reference on the module terminal strip.
Field Installation Guidelines
- Mount the DX571 onto a standard 35 mm DIN rail adjacent to the S500-eCo CPU or preceding I/O expansion module.
- Slide the module laterally along the DIN rail until the side-mounted backplane bus connector engages firmly with the adjacent module connector.
- Wire the 24 VDC digital input field supply, input sensor leads, and AC load relay circuits to the front terminal block according to the 1-wire installation diagram.
- Maintain low-impedance bonding between the DIN rail and the functional earth ground conductor in the control enclosure to prevent electromagnetic noise coupling into internal logic circuits.
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.
Tech & Buying Guide
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.