Industrial Automation Solution – Mitsubishi Electric A2ASCPU | MELSEC-A Series
The Mitsubishi Electric A2ASCPU is a high-performance CPU unit from the MELSEC-A Series programmable logic controller platform, engineered for demanding industrial automation environments. Designed to deliver reliable, deterministic control across a wide range of manufacturing and process applications, this CPU module is a proven choice for engineers specifying robust PLC solutions.
Where This Product Is Used
- Automotive Manufacturing: Body welding lines, paint shop conveyors, and assembly transfer systems requiring precise multi-axis sequencing.
- Food & Beverage Processing: Filling, capping, and packaging lines where hygienic operation and high-speed I/O response are critical.
- Chemical & Petrochemical Plants: Batch process control, reactor sequencing, and safety interlock systems.
- Water & Wastewater Treatment: Pump station automation, filtration control, and SCADA-integrated monitoring.
- Material Handling & Logistics: Conveyor routing, sortation systems, and automated storage/retrieval (AS/RS) applications.
- Discrete Manufacturing: CNC machine tool integration, press control, and robotic cell coordination.
- Power Generation & Utilities: Substation automation and turbine auxiliary control panels.
Technical Specifications
- Model / SKU: A2ASCPU
- Series: MELSEC-A (AnS Series)
- Manufacturer: Mitsubishi Electric Corporation
- Module Type: CPU Unit (Central Processing Unit)
- Program Memory: 14K steps (standard)
- I/O Points: Up to 256 I/O points
- Data Memory: Internal data registers (D), bit devices (M, X, Y, T, C)
- Communication: RS-232C programming port; compatible with MELSEC-NET/MINI-S3
- Power Supply: Supplied via base unit (A1S/A2S series power supply module)
- Operating Temperature: 0 °C to 55 °C
- Storage Temperature: -20 °C to 75 °C
- Humidity: 5% to 95% RH (non-condensing)
- Weight: Approx. 1,290 g
- Compliance: CE, UL, cUL
Why Engineers Specify This Model
- Proven Platform Longevity: The MELSEC-A Series has decades of field deployment, making the A2ASCPU a trusted choice for maintenance-critical facilities that require long-term spare parts availability.
- Deterministic Scan Performance: Fixed-cycle scan execution ensures predictable response times essential for synchronized multi-device control.
- Broad I/O Compatibility: Supports the full range of AnS-series I/O modules — digital, analog, temperature, and high-speed counter — enabling flexible system expansion.
- GX Developer / GX Works2 Compatible: Seamless programming with Mitsubishi’s industry-standard IEC 61131-3 compliant software tools.
- Robust EMC Design: Built-in noise immunity for operation in electrically harsh industrial environments (VFD-heavy panels, welding cells).
- Drop-in Replacement: Pin-compatible with A2ACPU and A2UCPU variants, simplifying legacy system upgrades without rewiring.
Complete System Bill of Materials
A typical A2ASCPU-based control panel requires the following components:
- CPU Module: A2ASCPU (this item)
- Base Unit: A1S38B / A1S52B / A1S65B (select by I/O slot count)
- Power Supply Module: A1S61P / A1S62P
- Digital Input Module: AX40S / AX80 (DC 24V sink/source)
- Digital Output Module: AY40S / AY80 (transistor or relay)
- Analog I/O Module: A68AD / A62DA (for process variable control)
- Programming Cable: SC-09 (RS-232C to RS-422 converter)
- Programming Software: GX Developer Ver. 8 or GX Works2
- Battery: A6BAT (program memory backup)
Compliance & Industry Standards
- CE Marking — EMC Directive 2014/30/EU & Low Voltage Directive 2014/35/EU
- UL 508 — Industrial Control Equipment (USA)
- cUL — Canadian Standards (CSA C22.2)
- IEC 61131-2 — Programmable Controllers: Equipment Requirements & Tests
- RoHS Compliant — Restriction of Hazardous Substances
Quality Assurance & Sourcing
All units supplied by Konmask.com are sourced through verified industrial distribution channels. Each A2ASCPU undergoes the following before dispatch:
- Visual inspection for physical damage, pin integrity, and label authenticity
- Firmware version verification against Mitsubishi Electric official documentation
- Functional power-on test where applicable
- Anti-static packaging with humidity indicator card
- Certificate of conformity available upon request
We supply new, surplus-new, and refurbished units — condition is clearly stated on each listing. Refurbished units carry a 90-day warranty.
How to Source This Part
- Add to Cart directly on this page for in-stock units.
- Request a Quote for bulk orders (5+ units) — email support@konmask.com with your required quantity and delivery timeline.
- Expedited Sourcing: If the unit is not in stock, our procurement team can source from our global supplier network within 3–7 business days.
- Technical Pre-Sales Support: Contact us to confirm compatibility with your existing MELSEC-A base unit and I/O configuration before ordering.
Application-Specific FAQ
Q: Is the A2ASCPU compatible with the A2UCPU base unit?
A: Yes. The A2ASCPU is physically and electrically compatible with AnS-series base units (A1S38B, A1S52B, A1S65B). Verify slot count requirements before ordering.
Q: Can I use GX Works3 to program the A2ASCPU?
A: No. GX Works3 supports iQ-R and iQ-F series only. Use GX Developer Ver. 8.x or GX Works2 for MELSEC-A Series CPUs.
Q: What is the maximum program capacity?
A: The A2ASCPU supports up to 14K steps of ladder/SFC program memory. For larger programs, consider the A2ASCPU-S1 (30K steps) variant.
Q: Does this CPU support Ethernet communication natively?
A: No. Native Ethernet requires an add-on module such as the A1SJ71E71-B2 Ethernet interface unit.
Q: How long is the battery backup for program retention?
A: With a fresh A6BAT battery, program and data memory retention is approximately 5 years under standard operating conditions.
Q: Is this unit suitable for SIL-rated safety applications?
A: The standard A2ASCPU is not SIL-certified. For functional safety applications, Mitsubishi’s Q Series Safety CPU (QS001CPU) is recommended.
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