The 45C-35, also named 45C35, is an AutoBus interface head module for Reliance AutoMate 20/20E and AutoMax PLC and DCS systems. It connects local I/O racks to the AutoBus industrial network and realizes data exchange between controllers, I/O modules and upper monitoring devices. This product is discontinued. Only refurbished, surplus or NOS units are available for legacy system maintenance.

45C: Unified prefix for Reliance AutoMate 45C-series control components.35: Stands for the AutoBus interface head module.Hyphen: Standard writing form of industrial part number. 45C-35 and 45C35 are the same product.Revision suffixes: RN, RW, RX represent updated hardware versions.

Function: Configurable as master or slave for AutoBus network communication.Power Supply: 120/240 VAC, 50/60 Hz.Maximum Network Distance: Approximately 305 meters.Compatibility: AutoMate 20/20E PLC, AutoMax DCS and 45C-series I/O racks.Backplane Power: 5 VDC supplied by the rack backplane.Status Indicators: PWR, ACTIVE, COMM and FAULT LEDs on the front panel.Operating Temperature: 0°C to +55°C.Isolation Voltage: 500 Vrms between network side and backplane.Dimensions: About 228.6 × 177.8 × 152.4 mm.Weight: Approximately 3.18 kg.Slot Occupation: 1 standard slot.

Module Installation: Insert into standard 45C-series rack and fix with screws after power off.Network Interface: Equipped with dedicated port for AutoBus wiring, shielded cable is required.Configuration: Set network address and baud rate via on-board DIP switches.Front Panel: Integrated status LEDs for operating state and fault diagnosis.

Serves as a network gateway to connect local I/O units and AutoBus network.Transmits and receives real-time control data, device status and diagnostic information.Supports master-slave mode to coordinate multiple controllers.Enables remote monitoring and control of field equipment.Detects network failures and uploads fault information to the main controller.

Network expansion and replacement for AutoMate 20/20E PLC systems.Daily maintenance of legacy AutoMax DCS in manufacturing, process control and power industries.Building distributed I/O systems through AutoBus for production lines.Connecting old Reliance control systems with HMI and SCADA devices.

Installation: Cut off rack power before installing the module, and ensure firm connection.Wiring: Use shielded twisted pair cables for network connection, and ground the shield at one end only.Configuration: Complete network address and baud rate setting via DIP switches before power on.Routine Check: Check LED status every month, and clean surface and connectors every quarter.Safety: Disconnect all power sources before disassembly or maintenance to prevent electric shock and static damage.