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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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| Manufacturer | Schneider Electric |
|---|---|
| Product Line | Modicon 984 |
| Part Number | PC-E984-275C |
| Weight | 20.00 lbs (9.07 kg) |
| Product | Programmable Logic Controller (PLC) |
| CPU Speed | 25 MHz |
| User Memory | 16K words |
| State RAM | 32K words |
| Total Memory | 48K words |
| Flash RAM | 1 MB |
| SRAM | 512 KB |
| Communication Ports | 2 x Modbus (RJ45), 1 x Modbus Plus (9-pin D-sub) |
| PCMCIA Slot | Release 2.1 Type II |
| Operating Temperature Range | 0–60 °C |
| Power Supply | 24 V DC |
| Protection Class | Conformal Coated (Model 'C') |
| LED Indicators | 6 (Run, Ready, Modbus 1, Modbus 2, etc.) |
| Memory Backup | 100 days minimum with lithium battery |
| Compliance | EN 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.