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Schneider Electric Modicon 984 PC-E984-275C

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PC-E984-275C

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The Schneider Electric PC-E984-275C is a programmable logic controller (PLC) from the Modicon 984 series. It features a 25 MHz CPU, providing efficient processing power for automation tasks. This controller includes 16K words of user memory and a total memory capacity of 48K words, ensuring adequate space for applications.

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Technical specifications for PC-E984-275C

ManufacturerSchneider Electric
Product LineModicon 984
Part NumberPC-E984-275C
Weight20.00 lbs (9.07 kg)
ProductProgrammable Logic Controller (PLC)
CPU Speed25 MHz
User Memory16K words
State RAM32K words
Total Memory48K words
Flash RAM1 MB
SRAM512 KB
Communication Ports2 x Modbus (RJ45), 1 x Modbus Plus (9-pin D-sub)
PCMCIA SlotRelease 2.1 Type II
Operating Temperature Range0–60 °C
Power Supply24 V DC
Protection ClassConformal Coated (Model 'C')
LED Indicators6 (Run, Ready, Modbus 1, Modbus 2, etc.)
Memory Backup100 days minimum with lithium battery
ComplianceEN 50 155 (Railway Standard)

The PC-E984-275C model by Schneider Electric is an efficient programmable logic controller (PLC) within the Modicon 984 line. Operating on a 25 MHz CPU, this unit delivers reliable performance for various automation needs. Users will find a total memory capacity of 48K words, including 16K words dedicated to user memory and 32K words allocated for state RAM. Additionally, it has 1 MB of Flash RAM and 512 KB of SRAM for versatile data storage options.

For communications, the PLC includes two RJ45 Modbus ports and a 9-pin D-sub Modbus Plus port, allowing for seamless integration into existing systems. A PCMCIA slot (Release 2.1 Type II) is also available, enhancing expandability and connectivity options.

Designed to operate efficiently across a temperature range of 0 to 60 °C, the unit requires a 24 V DC power supply for proper functioning. Its protection class is characterized by conformal coating (Model 'C'), offering added durability in demanding environments. It features six LED indicators for easy monitoring of system status, including lights for Run, Ready, and Modbus communication. As for memory reliability, a lithium battery backup provides a minimum of 100 days of memory retention, ensuring data is preserved during power interruptions. The PC-E984-275C complies with the EN 50 155 railway standard, making it suitable for use in rail industry applications.