Mitsubishi A1SJHCPU-S8 Programmable Logic Controller CPU Module A1SJHCPUS8

Description:

The Mitsubishi A1SJHCPU‑S8 programmable logic controller CPU module is a central processing unit used in industrial automation to execute control logic and manage I/O operations. It is commonly installed in Mitsubishi MELSEC‑A series PLC racks and control cabinets to coordinate sensors, actuators, and sequential machine processes. Maintenance teams and system integrators use this CPU for new system builds, control upgrades, and replacement of aging or failed controller cores.

Applications:

The Mitsubishi A1SJHCPU‑S8 is widely used in factory and process automation environments requiring dependable logic control and system coordination. It is commonly found in conveyor systems, packaging machinery, material handling equipment, assembly lines, machine tools, and standalone automated systems where programmable logic control supports sequencing, interlocking, and timing functions for automated operations.

Technical Specifications:

• Model: A1SJHCPU‑S8
• PLC family: Mitsubishi MELSEC‑A series
• CPU type: Logic controller processing unit
• Program memory: On‑board user program and data storage
• I/O support: Interfaces with discrete and expansion I/O modules
• Communication: Backplane bus and optional serial/Ethernet adapters
• Indicators: LEDs for power, run, error, and status
• Mounting: PLC rack slot
• Power: Supplied via PLC backplane
• Designed for: Logic execution, I/O coordination, and machine control
• Operating temperature: Industrial standard range

Common Replacements:

• Mitsubishi A1SJHCPU‑S6 (alternate version)
• Mitsubishi A1SJHCPU‑S12 (expanded memory)
• Omron CJ1M‑CPU13 (alternate PLC CPU)