Product Description
Schneider 140CPU31110 - PLC Module
The Schneider 140CPU31110 is a high-performance CPU module designed for industrial automation. It supports Modbus and Modbus Plus protocols for versatile communication. With memory protection, a backup battery, and real-time diagnostics, it ensures reliable operation.
Technical Specifications:
| Feature | Specification |
|---|---|
| Clock Speed | 66 MHz |
| RAM | 548 KB Internal RAM |
| Memory Expansion | PCMCIA card supported |
| Coprocessor | Built-in math coprocessor |
| Weight | 0.770 kg (1.698 lb) |
| Communication Ports | 1 x Modbus RS-232, 1 x Modbus Plus |
| Battery | 3V lithium, 1200 mAh, 10-year life |
Key Features:
-
Memory Protection:
A slide switch for memory write protection ensures program integrity during operation. -
Backup Battery:
A 3V lithium battery with 1200 mAh capacity provides up to 10 years of backup for memory retention. -
LED Indicators:
The front panel features 7 LEDs to display system status:- Ready (Green): Power-up diagnostic successful.
- Run (Green): Program is executing.
- Modbus and Modbus Plus (Green): Communication activity.
- Mem Prt (Orange): Memory protection activated.
- Bat Low (Red): Low or missing battery.
- Error A (Red): Communication fault on Modbus Plus.
Memory and Communication Configuration:
-
Communication Ports:
Includes Modbus RS-232 and Modbus Plus ports for reliable communication. -
Key Switch:
The key switch has three positions:- Stop: PLC stopped, no program modifications allowed.
- Mem Prt: PLC stopped or running, no program modifications allowed.
- Start: Program modifications allowed during operation.