CPU Modules | Schneider Electric PCE984275C

The Schneider Electric PCE984275C (also designated as PC-E984-275C) is a programmable central processing unit designed for the Modicon TSX Compact PLC platform. Engineered for small-to-medium control architectures, this processor module integrates 512 KB of Flash memory alongside onboard state registers and execution RAM to manage complex logic routines and process variables. The PCE984275C combines centralized processing with multi-protocol field communications in a compact, DIN-rail or panel-mountable enclosure.

Communication and System Integration

The module features integrated network communication interfaces, including two Modbus serial ports and one dedicated Modbus Plus port. The dual Modbus ports handle serial connection to local human-machine interfaces (HMIs), diagnostic computers, and secondary controllers. The Modbus Plus port provides high-speed token-passing network connectivity for distributed control across Modicon system nodes. The unit also supports InterBus communication protocols for interfacing with remote I/O subsystems.

Conformal Coating Protection

Identified by the "C" suffix in its part number, the PCE984275C includes factory-applied conformal coating on its internal printed circuit board assemblies. This protective barrier isolates sensitive electronic components from airborne contaminants, moisture, and corrosive industrial atmospheres, ensuring reliable performance in harsh operating environments.

Technical Specifications

System Execution and Compatibility

The PCE984275C executes Modicon 984 ladder logic programs and supports standard IEC-compliant programming conventions. It installs directly onto standard TSX Compact backplanes, deriving logic power from the rack backplane while interfacing with local and expansion I/O modules.

Frequently Asked Questions

Q: What product family does the PCE984275C belong to?A: The PCE984275C is a central processing unit (CPU) module belonging to the Schneider Electric Modicon TSX Compact / 984 programmable controller platform.

Q: What does the "C" suffix signify on the PCE984275C part number? A: The "C" suffix indicates that the internal circuit board assemblies are factory-treated with a conformal coating for protection against moisture and corrosive ambient conditions.

Q: What onboard communication options are available on this CPU?A: The module is equipped with two Modbus serial ports for local device connections and one Modbus Plus port for high-speed network integration.