Model Number Explanation

• AS: Modicon Automation System component

• 884A: Compact PLC CPU series (884A model line)

• 101: Standard variant with 2K memory, remote I/O, 115/230V AC power

Technical Specifications

• CPU: 8086 main processor + dual 8051 front‑end processors

• User Logic Memory: 2K words

• Register Memory: 1K words

• Max I/O Capacity: 256 discrete input/output points

• Power Supply: 115/230V AC, 50/60 Hz

• Communication: Built‑in Modbus port; optional second communication port

• Programming Interface: P190 (for programming and diagnostics)

• Operating Temperature: 0°C to +60°C

• Storage Temperature: −40°C to +85°C

• Humidity: 5%–95% non‑condensing

• Dimensions: ≈250 × 80 × 150 mm

• Weight: ≈0.45 kg

• Certifications: CE, UL 508

Interface & Configuration

• Backplane Connection: Modicon 800/984 series rack connector

• Field Communication: Modbus RTU (RS‑232/485)

• Expansion Slots: Supports optional communication/ I/O expansion cards

• Mounting: Rack‑mount or panel‑mount compatible

Key Features

• High‑Performance Architecture: 8086 + dual 8051 CPU design for fast logic execution

• Adequate Memory: 2K user logic + 1K registers for complex control programs

• Remote I/O Support: Enables distributed I/O architectures for large systems

• Modbus Communication: Standard port for HMI, SCADA, and slave device connectivity

• Built‑in Diagnostics: Power‑up self‑tests and real‑time fault monitoring

• Flexible Installation: Rack or panel mounting adapts to various control cabinet layouts

Applications

• Systems: Schneider Modicon 984, 884 series PLC systems

• Industries: Manufacturing, process automation, power generation, water treatment

• Use Cases: Mid‑range machine control, production line automation, building HVAC control, legacy system upgrades

Compatibility

• I/O Racks: Modicon 800 series I/O racks, 984 series backplanes

• I/O Modules: Modicon 800/984 series digital/analog I/O modules

• Software: Compatible with Modicon programming software (e.g., Concept, ProWORX 32)