The 45C-380, also marked as 45C380, is a 16-bit parallel register input module for Reliance AutoMate and AutoMax PLC systems. It collects 16-bit digital data from rotary encoders, thumbwheel switches, BCD and parallel binary devices. This model is discontinued. Only refurbished, surplus or NOS units are available for legacy system maintenance.

45C: Unified prefix for Reliance AutoMate 45C-series control components.380: Designates a 16-bit parallel register input module.Hyphen: Common format for industrial part numbers. 45C-380 and 45C380 are the same product with identical performance and compatibility.Suffixes such as A/B/C/D represent different hardware revisions, while the basic functions stay unchanged.

Module Type: Parallel Register Input Module.Data Bit Width: 16-bit, supporting parallel binary and BCD signals.Input Mode: 1 direct 16-bit channel or 6 multiplexed channels with strobe signals.Logic Level: Compatible with TTL to 24VDC signals.Isolation: Electrical isolation between field input side and PLC logic side.Terminal Block: 24-pin removable screw terminal for field wiring.Backplane Power: 5 VDC supplied by the rack backplane.Slot Occupation: 1 standard slot for 45C-series racks.Weight: Approximately 0.91 kg.Operating Temperature: 0°C to +55°C.Compatibility: AutoMate 20/20E, AutoMax PLC and 45C-series I/O racks.

Module Installation: Cut off system power, insert the module into standard 45C-series rack and tighten the fixing screws.Mode Selection: Choose direct input or 6-channel multiplexed input via on-board DIP switches.Logic Setting: Configure the module to match TTL or 24VDC input logic level.Status Indicators: Front panel LEDs indicate power, operation and fault status.

Captures 16-bit parallel binary and BCD data from various field digital devices.Supports multiplexed input to expand data collection capacity with strobe signal control.Adopts electrical isolation design to protect the PLC from on-site interference, surge voltage and ground loop issues.Built-in power circuit for input signals, no need for external power supply.

Collect position and speed data from rotary encoders.Receive set value signals from thumbwheel switches on operation panels.Connect with parallel binary sensors and counters for high-speed digital signal acquisition.Serve as replacement parts for maintenance and upgrade of existing AutoMate and AutoMax legacy systems.

Installation: Insert or remove the module only when the rack power is disconnected, and ensure good contact with the backplane.Wiring: Use shielded twisted pair cables for data lines and ground the shield at one end to reduce interference.Configuration: Complete mode and logic level settings via DIP switches before powering on the system.Routine Check: Regularly check LED status and terminal tightness, and keep the module free of dust.Safety: Disconnect all power sources before disassembly or maintenance to avoid electric shock.