June 08, 2026

S-67118B Reliance Electric Isolated Analog Output Module

The S-67118B (also known as 57C410, 70722-11J) is the final hardware revision of Reliance Electric’s 4-channel isolated analog output module, fully compatible with AutoMax PLC and DCS 5000 series systems. As the latest iteration in the S-67118 family, it supersedes S-67118 and S-67118A with upgraded components, enhanced EMC protection, and tighter long-term stability, while maintaining full drop-in interchangeability for legacy system maintenance.

Description

S-67118B Reliance Electric Isolated Analog Output Module

Overview

The S-67118B converts digital signals from the AutoMax backplane into precision voltage or current analog outputs, with 2500 V galvanic isolation between logic and field circuits, and between individual channels. This isolation eliminates ground loops, electrical noise, and high-voltage transients in harsh industrial environments. Equipped with 12-bit D/A converters, it delivers accurate, stable analog control for valves, VFDs, actuators, and process instruments. As the final revision, it incorporates all improvements from S-67118A plus additional reliability upgrades for extended service life in continuous-duty applications.

Key Features

Four Fully Isolated Channels: 4 independent, galvanically isolated channels configurable for voltage or current output, supporting multi-device control with one module.
12-Bit High Resolution: 12-bit resolution for voltage outputs, 11-bit for 4–20 mA current outputs, ensuring precise signal reproduction.
2500 V Reinforced Isolation: Complete channel-to-channel and logic-to-output isolation, protecting systems from industrial noise and voltage spikes.
Multi-Range Configuration: Standard industrial ranges: voltage (0–10 VDC, ±5 VDC, ±8 VDC, ±10 VDC); current (4–20 mA, max 10 mA/channel).
Enhanced 100 Hz Low-Pass Filter: Upgraded filter circuitry for smoother signal damping, reducing noise and stabilizing analog device operation.
Final Revision Reliability Upgrades: Improved PCB material, enhanced EMC shielding, and screened industrial-grade components (vs. S-67118/S-67118A), reducing drift and extending MTBF.
Full Backward Compatibility: Direct plug-and-play replacement for S-67118, S-67118A, 57C410, and 57C410A; no system reconfiguration needed.
LED Diagnostic Indicators: Front-panel LEDs for power, channel activity, and fault status, enabling quick on-site troubleshooting.
Robust Industrial Construction: IP20-rated metal enclosure, optimized thermal dissipation, and vibration-resistant design for harsh environments.

Technical Specifications

Manufacturer: Reliance Electric (ABB/Baldor)
Model: S-67118B (alternate P/N: 57C410, 70722-11J)
Module Type: Isolated Analog Output Module
Series: AutoMax Multibus I/O, DCS 5000
Number of Channels: 4 (per-channel isolation)
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 (enhanced circuitry)
Accuracy: ±0.1% of full scale (25°C); improved long-term drift vs. earlier revisions
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: 355 mm × 203 mm × 76 mm (14 in × 8 in × 3 in)
Weight: 0.55 kg (2.5 lbs)
Enclosure Rating: IP20
Mounting: Rack-mount (AutoMax standard backplane)
Revision Differences (vs. S-67118/S-67118A):
- Higher-grade PCB substrate for reduced thermal expansion
- Added EMC shielding on analog output circuits
- Screened components for wider temperature tolerance
- Optimized trace routing for lower noise coupling
- Improved solder joints and connector durability

Applications

The S-67118B is ideal for industrial automation requiring precise, reliable analog control, especially in legacy AutoMax/DCS 5000 systems:

Process Control: Regulating flow, pressure, temperature, and level via analog valves and transmitters in chemical, oil and gas, water treatment, and pharmaceutical industries.
Motion Control: Driving VFDs, servo amplifiers, and motor controllers for speed/positioning in material handling, packaging, and machine tools.
Manufacturing Automation: Controlling actuators, solenoids, and analog indicators in assembly lines, textile machinery, and metalworking equipment.
Legacy System Upgrades: The preferred replacement for aging S-67118/S-67118A modules, offering the highest reliability in the family for extended system life.

Compatibility and Availability

Compatible Systems: AutoMax PLC, DCS 5000 series, and all Reliance Electric Multibus-based control systems.
Alternate Part Numbers: S-67118, S-67118A, 57C410, 57C410A, 70722-11J (functionally interchangeable).
Status: Obsolete (original production discontinued); available as refurbished, surplus, or used units from specialized industrial automation suppliers.
Refurbished Units: Undergo full disassembly, component replacement, calibration, and load testing to meet factory specs; include warranty for reliable operation.

Advantages

Highest Reliability in Series: Final revision with upgraded components and shielding, minimizing downtime in critical applications.
Superior Noise Immunity: 2500 V isolation + enhanced EMC protection, ideal for electrically harsh environments.
Flexible Configuration: Multiple output ranges compatible with diverse analog field devices, reducing inventory complexity.
Cost-Effective Legacy Support: Refurbished S-67118B units provide a budget-friendly, high-reliability solution for maintaining AutoMax/DCS systems without full replacement.
Seamless Migration: Full backward compatibility ensures easy upgrade from S-67118/S-67118A with no system changes required.

Contact Info