Technical Specifications

• Brand: RELIANCE (Reliance Electric, Baldor, Rockwell Automation)

• Part Number: 0-58820-2 (also 0588202)

• Type: Multibus ControlNet Module (MBCN)

• Series: AutoMax PLC (Multibus rack)

• Revision: 2 (hardware/firmware upgrade over Rev 0/1)

• Protocol: ControlNet v1.5 (scanner/adapter)

• Network Ports: 2 × BNC (COM A / COM B, redundant)

• Configuration Port: RS‑232 (CONFIG, 9‑pin)

• Node Address: 2 × rotary switches (MAC ID 10 / 1)

• Indicators: 7‑segment LED (fault codes), OK (green), PWR, RUN, FAULT, COM

• Backplane: Multibus, +5 VDC power

• I/O Data: Up to 16 KB total (input/output)

• Scheduled Connections: 127 max (480 words each)

• Operating Temp: 0°C to +65°C (extended range vs. Rev 1)

• Storage Temp: -40°C to +85°C

• Humidity: 5%–95% non‑condensing

• Dimensions: Standard AutoMax card

• Weight: ~0.75 kg

• Compatibility: All AutoMax PLC racks; ControlNet‑compliant devices

• Certifications: CE, UL

Core Functions

• ControlNet Communication: High‑speed, deterministic I/O and messaging for AutoMax systems.

• Network Redundancy: Dual BNC ports support redundant ControlNet cabling for fault tolerance.

• AutoMax Integration: Connects AutoMax PLCs to FlexPak 3000 drives, I/O modules, and HMIs.

• Enhanced Diagnostics: RS‑232 port for setup/monitoring; 7‑segment LED displays detailed fault codes.

• Improved Reliability: Rev 2 hardware upgrades (components, layout) for better heat dissipation and longer service life.

• Data Exchange: Real‑time transfer of drive status, setpoints, and I/O data for coordinated motion control.

Application Scenarios

• AutoMax‑based automation systems (metallurgy, mining, paper, steel) requiring ControlNet connectivity.

• FlexPak 3000 DC drive integration for high‑speed motion control (conveyors, winders, extruders).

• Distributed control systems (DCS) with multi‑device coordination and redundant networking.

• Legacy system upgrades replacing older 0-58820/‑1 modules with the latest Rev 2 for improved performance.

Differences from 0-58820 / 0-58820-1

• Revision 2 Upgrade: Updated PCB layout, components, and firmware for extended temperature range (0–65°C) and better reliability.

• Full Compatibility: Pin‑compatible drop‑in replacement for Rev 0 (0-58820) and Rev 1 (0-58820-1).

• Enhanced Thermal Design: Improved heat dissipation for high‑density rack environments.