Reliance Electric S-D4022 Node ID & I/O Configuration Module

Overview

Key Features

• 16 digital inputs / 8 digital outputs with configurable logic and fault indication.

• Supports up to 255 unique node IDs, allowing large network layouts without address conflicts.

• RS‑485 Modbus RTU communication with data rates up to 115.2 kbps for long‑haul, reliable links to controllers and SCADA.

• Designed for direct plug‑in into standard AutoMax PMI racks, sharing the same mechanical and electrical footprint as other S‑D40xx series modules.

• Front‑panel LEDs for power, network activity, I/O status, and fault diagnostics enable quick local troubleshooting.

• 24 VDC backplane‑powered with low power consumption, optimized for continuous operation in control cabinets.

• Reinforced isolation and surge protection for operation in electrically noisy industrial environments.

• IP20 enclosure for dust and finger‑contact protection; suitable for standard cabinet mounting.

Technical Specifications

• Manufacturer: Reliance Electric (ABB/Baldor)

• Model: S‑D4022 (Node ID & I/O Config Module)

• System Compatibility: Reliance AutoMax Distributed Control System

• I/O Configuration: 16 digital inputs, 8 digital outputs

• Network Addressing: 1–255 configurable node IDs

• Communication: RS‑485, Modbus RTU, up to 115.2 kbps

• Power Supply: 24 VDC via AutoMax backplane

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: −20 °C to +70 °C

• Relative Humidity: 5%–95% (non‑condensing)

• Protection Rating: IP20

• Mounting: Standard AutoMax 19‑inch rack‑mountable

• Certifications: CE, UL, RoHS compliant

• Status: Discontinued by OEM; available as professionally refurbished with full testing and calibration.

Typical Applications

• Distributed I/O expansion for AutoMax systems in assembly lines, material handling, and packaging machines.

• Multi‑node network coordination in large factories, allowing consistent addressing across production cells.

• Machine retrofits and upgrades where existing controllers need additional discrete I/O or Modbus connectivity.

• Process monitoring for pumps, valves, conveyors, and safety interlocks via digital I/O.

• Integration with SCADA and HMI systems for centralized data acquisition and remote control.

Compatibility & Availability

Advantages

• Combines node addressing + digital I/O + Modbus communication in one compact module, reducing system complexity.

• High network capacity (255 nodes) and fast RS‑485 performance support large‑scale automation.

• Rugged industrial design ensures reliable operation in harsh electrical and mechanical environments.

• Easy installation and diagnostics via plug‑and‑play rack mounting and front‑panel LEDs.

• Cost‑effective expansion for legacy AutoMax systems, extending service life without full platform replacement.