Overview
The Modicon PC-0984-680 is part of the industry-standard 984 series programmable logic controller family. This processor is designed for mid-range industrial automation and control applications requiring discrete I/O, analog input/output, and communications capabilities. The 984-680 model combines proven reliability with modular I/O expansion, making it suitable for machine control, process control, and distributed remote I/O systems.
Key Features
- Supports up to 1920 analog points in 16-bit words for comprehensive data acquisition
- User-changeable executive operating routines for flexible program execution
- AC and DC power supply options for diverse installation environments
- Compatible with Modicon Remote I/O (RIO) for distributed control architectures
- Integrated communications processing for Modbus and network connectivity
- Lithium battery backup for system memory protection during power loss
Technical Specifications
- Model: PC-0984-680
- Series: Modicon 984
- Processor Type: Programmable Logic Controller (PLC)
- Analog I/O Capacity: Up to 1920 analog points (16-bit words)
- Power Supply: AC and DC options available
- Memory Backup: Lithium battery
- Communications: Modbus, Remote I/O compatible
- Mounting: 19-inch industrial housing
- Condition: Fully tested and functional
Typical Applications
- Discrete manufacturing and machine automation
- Process control for liquid/powder dispensing and batching
- HVAC and building automation systems
- Packaging and labeling equipment control
- Remote I/O distribution in large plant networks
- Legacy system upgrades and modernization
Compatibility & Replacements
Compatible With
- Modicon 984 series I/O modules and accessories
- Modbus communication networks
- Modicon Remote I/O (RIO) interface cards and networks
- MODSOFT programming software
- 19-inch DIN rail industrial enclosures
- AC/DC field power supplies rated for 984-series controllers
Replaces / Drop-In Replacement For
- PC-0984-680 (original part number)
- 984-680 (alternate designation)
Works With
- MODSOFT programming and configuration software
- Modbus RTU and ASCII protocols
- Remote I/O network interface cards
- Legacy industrial automation systems from the 1980s-2000s era
- Modicon 800 series I/O modules and power supplies
