Product Description

45C-381 (45C381) is a 16-bit parallel register output module specifically designed for the Ryan (now ABB) AutoMate/AutoMax PLC system. It outputs 16-bit digital data from the PLC to LED displays, dip switches, and other low-speed digital devices. This model is no longer in production. Currently, only refurbished pieces, inventory leftovers, and brand-new inventory items are available for use in maintaining old systems.

Model Interpretation

45C: The common prefix for the Ryan AutoMate 45C series control components.

381: Represents a 16-bit parallel register output module.

45C-381 = 45C381: The conventional numbering format for industrial accessories, both are exactly the same.

Suffixes A/B/C: Represent the hardware revision version, with the core function remaining unchanged.

Technical Parameters

Module Type: Parallel Register Output Module

Data Bit Width: 16 bits (parallel binary / BCD code)

Output Mode: 1 direct-connection 16-bit channel, or 6 channels with select signals for multiplexing

Logic Level: Compatible with TTL to 24VDC level signals

Isolation Performance: Electrical isolation between the PLC logic side and the field output side

Terminal Connections: 24-pin detachable screw terminals

Backplane Power Supply: The rack backplane provides 5VDC; the output circuits have their own power supply

Occupied Slot: Compatible with the 45C series rack, occupying 1 standard slot

Weight: Approximately 0.95 kilograms (2.09 pounds)

Operating Temperature: 0°C to +55°C

Compatible Equipment: AutoMate 20/20E, AutoMax PLC, 45C series I/O rack

Interface and Configuration

Module Installation: Cut off the system power, install into the 45C series rack and tighten the screws.

Output Mode: Select direct connection or 6-channel multiplex mode through dip switches.

Level Setting: Configure TTL or 24VDC output levels.

Status Indicators: Front panel LED displays power, operation, and fault status.

Main Functions

16-bit Parallel Data Output: Send high-speed 16-bit binary / BCD data to field devices.

Multi-channel Multiplex Output: Expand output capacity through 6 multiplex and select signal channels.

Electrical Isolation Design: Protect the PLC from interference, surges, and ground loop effects.

Built-in Output Power Supply: No need for external power supply, simplifying wiring. Application scenario

LED Display Control: Drive 16-bit LED numeric/alphabetic displays.

DIP switch output: Send BCD settings to the operation panel.

High-speed digital output: Connect parallel binary actuators, counters, and old equipment.

Upgrade of old systems: Directly replace the 45C-381 in the existing AutoMate/AutoMax system.

User Manual and Maintenance Instructions

Installation Procedure: Unplug and plug in the module while the power is off, ensuring good contact with the backplane.

Cable Requirements: Use shielded twisted-pair cables, with the shielding layer grounded at one end.

Parameter Configuration: Set the output mode and level before powering on through the DIP switch.

Daily Maintenance: Regularly check the tightness of the LED and terminals, and keep the module clean.