Part Number Definition

• 0-57409-B

  • 0-57409: Base AutoMax 2-channel isolated analog input module

  • B: Revision B (PCB & firmware update, improved isolation/noise immunity)

• Full name: Isolated Control A/D Analog Input Module for AutoMax / DCS 5000

• Compatibility: Drop-in compatible with 0-57409 / -C; works with 0-57407 CPU series and standard AutoMax racks/power supplies.

Technical Specifications

• Manufacturer: Reliance Electric (now Rockwell Automation)

• Function: Converts 2 channels of isolated analog signals (voltage/current) to digital values for the AutoMax DCS/PLC.

• Inputs: 2 isolated analog channels, differential

• Signal Ranges (per channel, software-selectable):

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

  • Current: 4–20 mA (external 250 Ω resistor required)

• Resolution: 12-bit A/D converter

• Isolation: 2500 VAC channel-to-channel and channel-to-backplane

• Operating Voltage: 15 VDC (from AutoMax backplane)

• Operating Temperature: 0°C to +60°C

• Dimensions: 342 × 205 × 30 mm (1.25” slot)

• Weight: Approx. 0.7–0.9 kg

• Protection: IP20; no conformal coating (Rev B)

• Power Consumption: ≤ 12 W

Front Panel & Indicators

• No LEDs or display; edge connector to backplane, field wiring via front terminal block (not included).

• Supports hot-swap installation/removal.

Key Features

• 2 fully isolated analog inputs for noise rejection in harsh industrial environments.

• Software-configurable voltage/current ranges for flexible sensor interfacing.

• 12-bit high-resolution conversion for accurate process monitoring.

• Standard AutoMax backplane form factor, no adapter needed.

• Revision B improvements:

  • Enhanced PCB layout for lower crosstalk

  • Firmware calibration stability updates

  • Improved isolation barrier integrity

Revision Notes (0-57409 Series)

• 0-57409: Original release (Rev A)

• 0-57409-B: Revision B (performance & noise immunity upgrade)

• 0-57409-C: Revision C (conformal coating, extended temp range -10°C to +60°C)

Applications

• System: Reliance AutoMax / DCS 5000

• Industries: Process control, manufacturing, power generation, pulp & paper, water treatment

• Use: Monitoring analog sensors (pressure, temperature, flow, level) in multi-motor or distributed control systems.

Installation & Maintenance

• Insert into an empty AutoMax backplane slot, secure latches, wire field signals to the terminal block.

• Quarterly: Check wiring tightness and connector integrity.

• Biannually: ESD-safe cleaning of connectors and front panel.

• Interchangeable with all 0-57409 revisions; no program changes required.