Mitsubishi Electric EXEA2 Series Modules — EXEA2-1100A00-03 Main Units with 80 I/O

Technical Dossier

Product Details And Specifications

Mitsubishi Electric EXEA2 Series: Comprehensive Module Range and Technical Overview

The Mitsubishi Electric EXEA2 series is a distributed control system (DCS) platform deployed across global heavy industry sectors including petrochemical complexes, nuclear power facilities, oil refineries, and large-scale manufacturing plants. Engineered for high-availability process control environments, the EXEA2 architecture supports redundant CPU configurations, high-density I/O expansion, and deterministic bus communication — characteristics that have sustained its installed base across facilities with 20+ year operational lifecycles. The series occupies a critical position in Mitsubishi Electric's industrial automation portfolio, bridging legacy MELSEC-based control logic with modern fieldbus integration requirements. Its modular backplane design allows incremental expansion without full system replacement, a key factor in its continued specification by engineering contractors in brownfield projects.

The Evolution of EXEA2 Architecture

The EXEA2 series emerged from Mitsubishi Electric's earlier EXE and EXEA platforms, inheriting the backplane bus topology while introducing enhanced processor throughput and expanded I/O addressing capacity. Early EXEA2 deployments (circa late 1990s to early 2000s) relied on proprietary optical fiber communication between controller nodes, a design choice that maximized noise immunity in high-EMI refinery environments. Subsequent hardware revisions introduced compatibility with PROFIBUS-DP and CC-Link fieldbus standards, enabling integration with third-party instrumentation without gateway hardware.

The transition from EXEA to EXEA2 introduced a revised backplane connector standard, making the two generations mechanically incompatible at the module level — a critical consideration for maintenance engineers sourcing replacement parts. Later EXEA2 revisions added Ethernet-based engineering station connectivity, replacing the earlier RS-232C serial programming interface. As of 2026, the EXEA2 series is classified as a mature/end-of-life platform by Mitsubishi Electric, with no new hardware development announced. Facilities operating EXEA2 systems are advised to maintain strategic spare parts inventories, as OEM production of select modules has been discontinued. Modern migration paths include the MELSEC iQ-R series and Yokogawa CENTUM VP for full DCS replacement scenarios.

EXEA2 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the Mitsubishi Electric EXEA2 series, classified by functional category:

Main Controller Units

• EXEA2-1100A00-03: Main unit with 80 I/O capacity; primary CPU/backplane assembly for standard process control nodes.
• EXEA2-1100A00-01: Main unit, 80 I/O, earlier hardware revision; functionally equivalent with revised firmware baseline.
• EXEA2-1100A00-02: Main unit, 80 I/O, intermediate revision; incorporates updated watchdog timer circuit.
• EXEA2-1200A00-01: Extended main unit supporting 160 I/O; used in high-density process segments.
• EXEA2-1200A00-02: Extended main unit, 160 I/O, revised backplane bus driver.

CPU & Processor Modules

• EXEA2-CPU01: Standard process CPU module; single-loop execution with 1ms scan cycle.
• EXEA2-CPU02: High-speed CPU module; supports dual-redundant configuration with automatic failover.
• EXEA2-CPU03: Enhanced CPU with expanded memory map; required for large tag-count applications exceeding 4,000 I/O points.

Analog Input (AI) Modules

• EXEA2-AI08: 8-channel analog input; 4–20 mA / 1–5 V selectable; 12-bit resolution.
• EXEA2-AI16: 16-channel analog input; high-density process measurement; supports HART pass-through on select channels.
• EXEA2-AI08H: 8-channel high-accuracy analog input; 16-bit resolution; used in precision flow and pressure measurement loops.

Analog Output (AO) Modules

• EXEA2-AO08: 8-channel analog output; 4–20 mA; used for control valve and variable speed drive setpoint transmission.
• EXEA2-AO04H: 4-channel high-accuracy analog output; 16-bit DAC; applied in critical regulatory control loops.

Digital Input (DI) Modules

• EXEA2-DI32: 32-channel digital input; 24 VDC; used for discrete process status monitoring (valve position, motor run/stop).
• EXEA2-DI16: 16-channel digital input; 24 VDC; standard density for smaller process units.

Digital Output (DO) Modules

• EXEA2-DO32: 32-channel digital output; relay or transistor output selectable; motor starter and solenoid valve control.
• EXEA2-DO16R: 16-channel relay output; 250 VAC / 2A per channel; used in high-voltage discrete control applications.

Communication & Network Modules

• EXEA2-NET01: Ethernet communication module; 100BASE-TX; engineering station and SCADA connectivity.
• EXEA2-PB01: PROFIBUS-DP master/slave module; supports up to 125 slave devices per segment.
• EXEA2-CCL01: CC-Link master module; Mitsubishi proprietary fieldbus; 10 Mbps maximum data rate.

Power Supply Modules

• EXEA2-PSU01: 24 VDC system power supply; 10A output; supports redundant PSU pairing.
• EXEA2-PSU02: Redundant power supply module; hot-swap capable; used in continuous-process applications requiring zero planned downtime.

Sourcing Hard-to-Find & Obsolete EXEA2 Parts

Quality Control for the EXEA2 Range

EXEA2 modules present specific test challenges due to their proprietary backplane bus protocol and multi-layer PCB construction. DriveKNMS applies a structured test protocol for all EXEA2 inventory prior to shipment. CPU modules undergo full power-on self-test (POST) verification, memory integrity check, and communication bus loopback testing using EXEA2-compatible backplane fixtures. Analog I/O modules are calibrated against NIST-traceable reference standards, with channel-by-channel linearity and offset verification recorded in the accompanying test report. Digital I/O modules are tested for contact integrity (relay modules) and switching response time (transistor output modules). Communication modules — including EXEA2-NET01 and EXEA2-PB01 — are validated for protocol handshake and data throughput under simulated load conditions. All tested units are assigned a unique test record number traceable to the shipment documentation.