Model Definition

• 0-57C407: Full part number

  • Leading 0: Factory-original, unmodified unit

  • 57C407: Base model (DCS 5000 processor module)

• Series: AutoMax 57C Series (Reliance PLC/DCS) / DCS 5000 Series

• Common variants: 0-57C407-4H (high-temperature + conformal coating)

Technical Specifications

General

• Brand: RELIANCE (Reliance Electric / Baldor Reliance)

• Type: DCS 5000 System Processor / Network Controller Module

• Form Factor: 1-slot AutoMax rack-mount (slots 0–4 only)

• Dimensions: 11.75 in (H) × 3.5 in (W) × 1.2 in (D) approx

• Weight: ~1.2 kg (2.6 lbs)

• Operating Temperature: 0°C to +60°C (standard); ‑20°C to +70°C (‑4H variant)

• Storage Temperature: ‑40°C to +85°C

• Humidity: 5%–95% non-condensing

• Isolation: 1500 Vrms processor-to-backplane

• Certifications: CE, RoHS, UL listed

Processor & Memory

• CPU: 16-bit DCS 5000 processor, 8 MHz clock

• RAM: 128 KB (user program + data)

• ROM: 64 KB (firmware/OS)

• Backup: Lithium battery (≥5 years retention)

• Scan Time: 1 ms typical (1K logic instructions)

Communication

• Network Protocol: DCS-Net (proprietary, 1 Mbps)

• Serial Ports: 2 × RS-232 (Programmer + Local Comm, 19.2 kbps)

• Backplane: AutoMax Multibus (2 Mbps)

• Node Capacity: Up to 32 nodes per DCS-Net network

• Compatibility: DCS 5000 racks (57C331/332/334); AutoMax I/O modules

Electrical

• Backplane Power: +5 VDC ±5% (from rack power supply)

• Current Draw: 1.0 A (typical), 1.5 A (max)

• Protection: Overvoltage, overcurrent, ESD, transient suppression

Interface & Communication Configuration

Physical Interfaces

• Front Panel:

  • 2 × 7-segment LED fault indicators (1st/2nd)

  • Green OK LED (steady = run, flash = fault)

  • 2 × RS-232 DB9 ports (Programmer / Local Comm)

• Backplane: AutoMax proprietary edge connector (power + Multibus + DCS-Net)

LED Indicators

• OK: Green (steady = normal operation; flashing = fault/init)

• 1st/2nd: 7-segment red LEDs (fault code display)

Core Functions

1. DCS 5000 System Control: Executes user logic for motion/process control; coordinates I/O modules.

2. DCS-Net Network Management: Manages 1 Mbps proprietary network; connects up to 32 nodes.

3. Serial Communication: 2 × RS-232 ports for programming, HMI, or local device connection.

4. Fault Diagnosis: 7-segment LEDs display fault codes for quick troubleshooting.

5. Battery-Backed Memory: Preserves program/data during power outages (≥5 years).

6. Backward Compatibility: Direct replacement for all 57C407 variants in legacy DCS 5000 systems.

Application Scenarios

• Legacy DCS 5000 Retrofits: Direct CPU replacement for 57C407 in industrial control systems.

• Motion Control: Coordinates drives (SD3000/SF3000/SA3000) for conveyors, cranes, machine tools.

• Process Control: Central control for water treatment, packaging, material handling, oil/gas.

• Distributed I/O Systems: Manages remote I/O via DCS-Net in large-scale factories.

• Harsh Environments: ‑4H variant for high humidity, dust, or temperature extremes.

Usage & Maintenance Instructions

Installation

1. Power Off: De-energize the DCS 5000 rack before insertion.

2. Insert Module: Align with slots 0–4 only; push firmly until backplane connector seats.

3. Secure: Tighten captive screws (torque 0.8–1.0 N·m).

4. Wiring: Connect RS-232 devices to front-panel DB9 ports; use shielded cable for noise immunity.

Operation

• Power-On: OK LED flashes (~5 s) during self-test; 7-segment LEDs show init codes.

• Normal: OK steady green; no fault codes displayed.

• Fault: OK flashes red; 7-segment LEDs show fault code → check wiring, network, or battery.