S-67118 Reliance Electric Isolated Analog Output Module
June 08, 2026

S-67118 Reliance Electric Isolated Analog Output Module

The S-67118 (also known as 57C410) is a high-performance isolated analog output module manufactured by Reliance Electric (now part of ABB/Baldor), designed for the AutoMax PLC and DCS 5000 series distributed control systems. It serves as a critical interface between digital control logic and analog field devices, delivering precise, noise-immune analog signals for industrial process control and motion control applications.

Description

S-67118 Reliance Electric Isolated Analog Output Module

The S-67118 (also known as 57C410) is a high-performance isolated analog output module manufactured by Reliance Electric (now part of ABB/Baldor), designed for the AutoMax PLC and DCS 5000 series distributed control systems. It serves as a critical interface between digital control logic and analog field devices, delivering precise, noise-immune analog signals for industrial process control and motion control applications.

Overview

The S-67118 is a 4-channel isolated analog output module engineered to convert digital signals from the AutoMax backplane into standard voltage or current analog outputs. Each channel is fully isolated, providing 2500 V isolation between the logic side and output circuits, as well as between individual channels, to suppress electrical noise, ground loops, and transient voltages in harsh industrial environments. The module integrates 12-bit digital-to-analog (D/A) converters for high-resolution signal conversion, ensuring accurate and stable analog output for driving valves, variable-frequency drives (VFDs), actuators, and process instruments.

Key Features

  1. Four Isolated Output Channels: Equipped with 4 independent, galvanically isolated channels, each configurable for voltage or current output, enabling multi-device control with single-module integration.

  2. 12-Bit Resolution: High-precision D/A conversion delivers 12-bit resolution for voltage outputs and 11-bit resolution for 4–20 mA current outputs, ensuring accurate signal reproduction with minimal error.

  3. 2500 V Electrical Isolation: Complete isolation between logic common and outputs, and between channels, protects the control system from high-voltage transients and noise in industrial settings.

  4. Configurable Output Ranges: Supports multiple standard industrial signal ranges: voltage outputs of 0–10 VDC, ±5 VDC, ±8 VDC, ±10 VDC; and current output of 4–20 mA (maximum 10 mA per channel).

  5. Integrated Low-Pass Filter: A 100 Hz first-order low-pass filter on each output smooths signal fluctuations, reducing electrical noise and ensuring stable operation of connected analog devices.

  6. Robust Industrial Design: Constructed with a durable, compact metal enclosure (IP20 rated) for reliable performance in harsh conditions, with resistance to vibration, shock, and temperature extremes.

  7. Seamless Backplane Integration: Designed for direct insertion into the AutoMax PLC/DCS 5000 series rack backplane, enabling plug-and-play installation and compatibility with existing Reliance Electric control systems.

  8. LED Status Indicators: Front-panel LEDs provide visual diagnostics for power, channel activity, and fault conditions, simplifying troubleshooting and maintenance.

Technical Specifications

  • Manufacturer: Reliance Electric (ABB/Baldor)

  • Model: S-67118 (alternate part number: 57C410, 57C410A)

  • Module Type: Isolated Analog Output Module

  • Series: AutoMax Multibus I/O, DCS 5000

  • Number of Channels: 4 (fully isolated per channel)

  • Resolution: 12-bit (voltage), 11-bit (4–20 mA current)

  • Output Ranges:

    • Voltage: 0–10 VDC, ±5 VDC, ±8 VDC, ±10 VDC

    • Current: 4–20 mA (max 10 mA/channel)

  • Isolation Voltage: 2500 V (logic-to-output, channel-to-channel)

  • Output Filter: 100 Hz first-order low-pass filter

  • Accuracy: ±0.1% of full scale (at 25°C)

  • Power Requirements: 5 VDC @ 100 mA, 24 VDC @ 120 mA (from backplane)

  • Operating Temperature: -20°C to +70°C (-4°F to +158°F)

  • Storage Temperature: -40°C to +85°C (-40°F to +185°F)

  • Humidity: 5%–95% non-condensing

  • Dimensions (Approx.): 355 mm × 203 mm × 76 mm (14 in × 8 in × 3 in)

  • Weight (Approx.): 0.55 kg (2.5 lbs)

  • Enclosure Rating: IP20

  • Mounting: Rack-mount (AutoMax standard backplane)

Applications

The S-67118 is widely utilized in industrial automation processes requiring precise analog control, including:
  • Process Control: Regulating flow, pressure, temperature, and level via analog valves, transmitters, and controllers in chemical, oil and gas, water treatment, and pharmaceutical industries.

  • Motion Control: Driving variable-frequency drives (VFDs), servo amplifiers, and motor controllers for speed and positioning regulation in material handling, packaging, and machine tool applications.

  • Manufacturing Automation: Controlling actuators, solenoids, and analog indicators in assembly lines, textile machinery, and metalworking equipment.

  • Distributed Control Systems (DCS): Serving as a key I/O module in Reliance Electric DCS 5000 systems for large-scale plant-wide control.

Compatibility and Availability

  • Compatible Systems: AutoMax PLC, DCS 5000 series, and other Reliance Electric Multibus-based control systems.

  • Alternate Part Numbers: S-67118A, S-67118B, 57C410, 57C410A (functionally identical, minor hardware revisions).

  • Status: Obsolete (original production discontinued by Reliance Electric/ABB/Baldor); available as refurbished, surplus, or used units from authorized industrial automation parts suppliers.

  • Refurbished Units: Undergo full disassembly, component replacement, encoder calibration, and load testing to meet original factory specifications, with warranty options for reliable operation.

Advantages

  • High Precision and Stability: 12-bit resolution and tight accuracy ensure consistent, reliable analog output for critical control applications.

  • Superior Noise Immunity: 2500 V isolation eliminates ground loops and noise interference, ideal for electrically harsh industrial environments.

  • Flexible Configuration: Multiple output ranges support compatibility with a wide variety of analog field devices, reducing inventory and system complexity.

  • Long-Term Reliability: Brushless, maintenance-free design and rugged construction deliver extended service life in continuous-duty industrial applications.

  • Cost-Effective Legacy Support: Refurbished and surplus units provide a cost-effective solution for maintaining existing AutoMax/DCS systems without full system replacement.


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