Schneider PCE984480 CPU Module

Product Overview

The PCE984480 serves as the main processor for Modicon PLC systems. You will find this CPU module in factory automation and process control networks. It executes user logic and manages all I/O communications. Additionally, this module includes dual Ethernet ports for redundancy. Therefore, it ensures continuous operation even during network failures.

Technical Specifications

The table below lists all key parameters for this CPU module.

Parameter	Value / Description
Full Model	PCE984480
Category	CPU Module
Dimensions (W x H x D)	12.5 cm x 16.8 cm x 7.2 cm (4.92 in x 6.61 in x 2.83 in)
Weight	0.65 kg (1.43 lb)
Processor	32-bit RISC, 266 MHz
Memory	64 MB SDRAM, 32 MB flash
Communication Ports	Two Ethernet (10/100), one RS-232, one USB
I/O Backplane Interface	One 80-pin DIN connector
Onboard Components	4 memory chips, 1 processor, 6 voltage regulators, 2 oscillators
Energy Storage	None (no supercapacitors or batteries)
Operating Voltage	24V DC ±20%
Current Draw	0.35 A typical, 0.55 A maximum
Program Capacity	256 KB logic memory
Data Storage	512 KB retainable via flash
Status LEDs	Run, Stop, Ethernet Link, Fault, Battery
Mounting	4 screw holes (backplane mount)

The PCE984480 stores no program data in volatile memory. Therefore, you do not lose logic during power cycles. Use the Ethernet ports for peer-to-peer communications. Meanwhile, the RS-232 port connects to a programming terminal.

Installation and Compatibility

You can mount this CPU directly onto a Modicon backplane. Slide the PCE984480 into the dedicated CPU slot until it locks. Then connect the 24V supply to the backplane terminals. Always ground the module properly before you apply power.

This CPU supports all Modicon I/O modules in the 984 series. It auto-detects each module’s address and configuration. The PCE984480 replaces older 984-480 models without program conversion.

Environmental and Safety Data

The PCE984480 operates from 0°C to +60°C. It withstands 2g vibration per IEC 60068-2-6. The circuit board has no conformal coating. Consequently, you must install this module in a clean cabinet. Keep the ventilation slots free from dust and debris.