Schneider AEG PC-E984-685

The PC‑E984‑685 is a programmable logic controller (PLC) belonging to the Modicon 984 series launched by Schneider Electric. Positioned as a high-performance control core in industrial automation, it adopts a modular design and supports installation via DIN rail or slot mounting.

Key Specifications

• CPU: 32-bit RISC
• Clock Speed: 40 MHz – 200 MHz
• Memory: 16 KB – 128 KB user memory, 10 KB – 128 KB data memory; some models are equipped with 512 KB RAM and 256 KB Flash
• I/O Points: Max. 256 points (16 digital inputs & 8 outputs, 4 analog inputs & 2 outputs, 2 pulse inputs & 2 outputs)
• Communication Interfaces: Multiple protocols including RS‑232, RS‑485, Modbus, Modbus Plus, CAN, and EtherCAT
• Power Supply: 24 V DC (115/230 VAC optional)
• Dimensions/Weight: Approx. 190 mm × 100 mm × 30 mm, weighing around 0.5 kg
• Operating Temperature: -20 °C to 55 °C; Storage Temperature: -40 °C to 70 °C

Product Features

1. High-performance CPU: Equipped with a 32-bit RISC processor, supporting high-speed scanning and complex computing tasks
2. Large-capacity memory: Sufficient user and data storage space, ideal for large-scale control programs
3. Rich I/O & modular expansion: Optional digital, analog, and pulse I/O modules to flexibly meet diverse on-site requirements
4. Multi-protocol communication: Built-in Modbus, RS‑232/485, CAN, and EtherCAT for seamless integration with upper-level systems or fieldbuses
5. Easy programming & maintenance: Compatible with Schneider’s Unity Pro/SoMachine software, providing graphical programming, online debugging, and fault diagnosis functions
6. Industrial-grade reliability: Adopts components certified by CE, UL, CSA, CCC, etc., with excellent anti-interference and anti-vibration performance

Structure & Components

• CPU Module: Core processing unit integrating CPU, memory, and basic I/O
• Expansion I/O Modules: Digital, analog, and pulse counting modules with pluggable stacking design
• Communication Modules: Providing interfaces such as RS‑232/485, Ethernet, and CAN
• Power Supply Module: 24 V DC powered, with overvoltage and overcurrent protection
• Chassis/Rail Brackets: Compliant with DIN rail standards for convenient on-site installation

Typical Application Fields

• Manufacturing Automation: Assembly lines, packaging machinery, CNC machine tools
• Process Control: Continuous production processes in chemical, petroleum, food, and beverage industries
• Energy Management: Power plants, distribution automation, wind/solar inverter control
• Building & Facilities: HVAC systems, lighting, and security systems
• Logistics & Handling: Conveying systems and AGV (Automated Guided Vehicle) control

Installation & Maintenance Notes

• Installation Method: Install via DIN rail or slot mounting; ensure stable chassis fixation to avoid vibration interference
• Wiring Precautions: Follow electrical wiring diagrams and use shielded cables compliant with IEC standards to prevent signal interference
• Power Supply Check: Confirm supply voltage and polarity; use regulated power supplies or UPS for uninterrupted power
• Module Stacking: Insert expansion modules in sequence and maintain complete backplane connection to avoid poor contact
• Software Configuration: Use Schneider’s official programming software for project downloading, online monitoring, and fault diagnosis
• Regular Maintenance: Check and clear dust from unobstructed heat dissipation holes; periodically calibrate the electrical characteristics of I/O modules; back up programs to external storage devices