PLCs, Power Supplies & Others

8K Logic Memory Controller with Modbus and Modbus Plus Connectivity

The PCE984245 serves as a compact central processing unit within Schneider Electric’s Modicon 984 platform. Engineers deploy this processor to manage discrete control tasks across manufacturing and process automation environments. Consequently, the module delivers reliable logic execution with integrated network communication for legacy control architectures.

Technical Specifications

Processing and Memory Architecture

The PCE984245 operates with 8K words of logic memory for storing user programs. External memory capacity extends to 10K words for larger application requirements. The processor solves logic at a rate of 2.5 milliseconds per kilobyte. Therefore, this CPU handles time-sensitive control operations with predictable scan times.

Communication and Integration

An integrated Modbus serial port enables programming and data exchange with HMIs. Additionally, the Modbus Plus network interface supports peer-to-peer communication between controllers. The module accommodates both local and remote I/O expansion for flexible system design. Engineers can configure hot standby redundancy for high-availability applications.

System Compatibility

The PCE984245 works with various Modicon 984 I/O modules and A120 series hardware. The controller supports counters, timers, and extended math functions for versatile data handling. Consequently, technicians can migrate existing programs from larger 984 controllers. Schneider Electric discontinued this model, though repair services and spare parts remain available through authorized channels.

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