Overview
The Gould PC-0984-380 is a Modicon 984 Series programmable logic controller that has served industrial automation systems for decades. Also referenced as Model 380 or M380-004 with part number AS-9507-000, this processor unit is engineered for process control and discrete logic applications. As a legacy PLC architecture, the PC-0984-380 remains in use across process industries where uptime and reliability are critical—spare parts and replacements are essential for maintaining older production lines.
Key Features
- Dual voltage supply: operates on 115Vac or 230Vac at 47–63 Hz, plus 24Vdc auxiliary
- Microprocessor-based controller for solid-state logic processing
- Non-volatile memory architecture preserves user program during power loss
- MODBUS port connectivity for supervisory communication
- Compact industrial-grade enclosure rated for harsh environments
- Field-proven reliability across automotive, chemical, and discrete manufacturing sectors
Technical Specifications
- Part Number: PC-0984-380 (AS-9507-000)
- Model Designation: 984 Model 380 (M380-004)
- Manufacturer: Gould / Modicon (now Schneider Electric heritage product)
- Supply Voltage: 115Vac or 230Vac, 47–63 Hz, plus 24Vdc
- Power Consumption: Approximately 80 watts typical
- Weight: 7 lbs
- Communication Protocol: MODBUS serial
- Memory Type: Non-volatile (battery backup not required)
- Operating Temperature Range: 0°C to 55°C (industrial ambient)
- Certifications: Legacy UL-listed industrial control equipment
- Condition: Used, tested functional
Typical Applications
The Gould PC-0984-380 Model 380 is deployed in:
- Process control loops for chemical and petrochemical plants
- Discrete sequential control in manufacturing and assembly lines
- Motion control coordination with analog sensors and actuators
- Building automation and HVAC control systems (legacy installations)
- Pump and compressor station management
- Backup or redundant logic processing in industrial facilities
Compatibility & Replacements
Compatible With
- Modicon 984-series I/O modules (AS-9487, AS-9485 series)
- Local 800 Series I/O drops and expansion chassis
- MODBUS serial communication networks
- Gould / Modicon programming interfaces (CRT programmers, Micro/DOS platforms)
- 24Vdc auxiliary power supplies rated 100–200mA
Replaces / Drop-In Replacement For
- PC-0984-380 (all revisions including Rev. J, Rev. K)
- Executive Model E380-902 configuration
- Other legacy Modicon 984 Model 380 units requiring same footprint and connector compatibility
Works With
- Modicon Ladder Logic programming (relay-based diagrams)
- MODBUS protocol for industrial networking
- Period-appropriate programming tools: Modicon/DOS, CRT programmer terminals
- Schneider Electric legacy control architectures and replacement modules
- Allen-Bradley or other third-party MODBUS gateway devices for network integration
















