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RD81OPC96

The Mitsubishi RD81OPC96 is an OPC UA (Unified Architecture) communication module designed for the MELSEC iQ-R Series PLC platform. It enables secure, standardized data exchange between Mitsubishi PLCs and external systems (SCADA, MES, ERP, or cloud platforms) using the OPC UA protocol.

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Key Features & Specifications
1. Basic Specifications
Model: RD81OPC96

Compatible PLC Series: MELSEC iQ-R Series (must be installed on the R-series base unit)

Communication Protocol: OPC UA (Server & Client functions)

Certifications: Compliant with OPC UA Foundation standards

2. Communication & Data Exchange
OPC UA Server Function:

Allows external OPC UA clients (e.g., SCADA, HMI, databases) to read/write PLC data.

Supports secure encrypted communication (TLS/SSL).

Authentication & access control (Username/Password, X.509 certificates).

OPC UA Client Function (Optional):

Can fetch data from other OPC UA servers (e.g., sensors, third-party PLCs).

Data Access Methods:

Read/Write PLC device data (X, Y, M, D, etc.).

Supports subscriptions (real-time data monitoring).

Historical data access (if configured with logging modules).

3. Performance & Connectivity
Ethernet Port: 1x 100BASE-TX/1000BASE-T (Gigabit Ethernet)

Max Simultaneous Connections: Up to 32 OPC UA client connections

Supported OPC UA Services:

Data Access (DA)

Alarms & Conditions (AC)

Method Calls (for remote execution)

4. Security Features
Secure communication (TLS 1.2/1.3 support)

User authentication (Username/Password, Certificate-based)

Access control (permissions for different users)

5. Software & Configuration
Configuration via GX Works3 (Mitsubishi’s engineering software)

OPC UA Address Space Editor (to define exposed PLC tags)

Diagnostics & monitoring tools