Product Brief Introduction

Model Definition

• 57C: Denotes the AutoMax 57C series rack‑mounted hardware platform.

• 423: Core function code for shared memory plus remote I/O master communication.

• 5A: Indicates enhanced hardware revision A with expanded memory capacity and optimized circuit design for improved reliability and compatibility.

Technical Specifications

• Power Supply: 5V DC from backplane, typical current 650mA.

• Memory: 256KB dual‑port shared RAM (128KB in non‑zero slots).

• Data Retention: Supported by 3.6V lithium battery and super capacitor; battery data retention ≥600 days, super capacitor maintains ≥400 minutes after 8‑minute charging.

• Backplane Bus: Multibus P1, 5V TTL, up to 2MB/s transfer rate.

• Operating Temperature: 0°C to 60°C.

• Storage Temperature: -20°C to 70°C.

• Humidity: 5% to 95% non‑condensing.

• Protection: Hardware watchdog, overvoltage and overcurrent protection.

• LED Indicators: POWER, RUN, FAULT, COMM on front panel.

Interface and Communication Configuration

• Backplane Interface: Gold finger connection to AutoMax Multibus backplane for data interaction with rack CPU and other modules.

• Remote I/O Ports: 4 isolated differential ports for connection to distributed I/O slaves via shielded twisted pair cables.

• Debug Interface: One RS‑232 port for local configuration, firmware upgrade, and fault log reading.

• **No native fieldbus interface; upper network access requires additional 57C series communication modules.

Core Functions

• High‑Speed Data Sharing: 256KB shared memory enables real‑time data exchange and parameter synchronization among up to 4 processors in the same rack.

• Remote I/O Master: Polls distributed field I/O nodes, collects analog/digital signals, and transmits control commands to slaves.

• System Configuration Storage: Stores key system parameters to reduce host processor load.

• Fault Monitoring and Diagnosis: Continuously monitors backplane and communication links, uploading fault codes and alarms on anomalies.

• Data Consistency Assurance: Coordinates data transmission between local rack and field I/O to ensure system‑wide data consistency.

Application Scenarios

• Multi‑Processor Control Systems: Packaging lines, textile processing equipment, automated material handling systems.

• Distributed I/O Control: Chemical industry auxiliary cabinets, water treatment equipment, legacy printing machinery.

• Legacy Equipment Renovation: Replacement of old communication modules in aging AutoMax systems in rubber processing, small metallurgy, and manufacturing workshops.

Operation and Maintenance Instructions

• Installation: Power off the rack before insertion/removal; align guides, fully insert gold fingers, and tighten front panel screws.

• Wiring: Use shielded cables for all external connections; separate signal cables from high‑power cables.

• Maintenance: Clean dust with dry compressed air every 3–6 months; avoid liquid cleaners on the circuit board.

• Troubleshooting: Check LED status, backplane connection, external wiring, and RS‑232 diagnostics in sequence.

• Storage: Keep spare modules in dry, constant‑temperature environment away from corrosive gases and strong electromagnetic interference.

• Prohibition: Unauthorized disassembly or modification of onboard components is strictly prohibited.