Overview
The Modicon PC-0984-680 is an industrial-grade programmable logic controller from Modicon’s venerable 984 Series family. The Model PC-0984-680 is part of the 984 platform, designed for reliable process automation and equipment control across manufacturing, production lines, and other industrial environments. This used unit has been cleaned and tested to verify full operational functionality.
Key Features
- Operates at 0.6/0.3A with 50/60 Hz frequency capability
- Proven 984 Series architecture with extensive industrial track record
- Compact mainframe design suitable for retrofit and replacement installations
- Supports Remote Input/Output (RI/O) processor expansion options
- Compatible with Modicon Modbus Plus networking and legacy automation systems
- Cost-effective solution for maintenance, upgrade, and legacy system support
Technical Specifications
The PC-0984-680 includes the following verified specifications:
- Current Rating: 0.6/0.3A nominal
- Frequency: 50/60 Hz
- Series: Modicon 984
- Model Designation: Model 680
- Processor Type: Central Processing Unit (CPU)
- Memory: Refer to unit label or documentation for specific configuration
- I/O Capability: Expandable via optional Remote I/O modules
- Communications: Modbus Plus and standard Modicon network support
Typical Applications
The Modicon 984 Model 680 is well-suited for:
- Process control in chemical, food & beverage, and pharmaceutical manufacturing
- Production line automation and equipment sequencing
- Machine tool and motion control integration
- System retrofits and upgrades to legacy 984-based installations
- Replacement controller for failed or aging Model 680 units
- Integration with existing Modicon Modbus Plus networks
Compatibility & Replacements
Compatible With
- Modicon 984 Series mainframe and expansion racks (AS-9534 series)
- Modicon Remote Input/Output (RI/O) processor modules
- Modbus Plus network systems
- Modicon P190-style panel software and editors
- Legacy Modicon automation infrastructure and control networks
Replaces / Drop-In Replacement For
- Modicon PC-0984-680 (direct equivalent)
- Other failed or aging Modicon 984 Model 680 units in equivalent configurations
Works With
- Modicon 984 Series system software and development tools
- Modbus Plus protocol and network infrastructure
- Modicon legacy PLC programming environments
- Standard industrial relay logic and analog control modules
