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This programmable logic controller manages industrial automation tasks for Schneider Electric systems. It executes control logic for manufacturing processes and machine operations. Therefore, it delivers reliable real-time control in factory environments.
Technical Specifications of Schneider P1984X008
The Schneider P1984X008 measures 18.5 cm in length and 13.0 cm in width. Its controller weight equals approximately 1.20 kg for panel or DIN rail mounting. A single power input connector accepts 24 VDC from an external supply. Additionally, the controller includes integrated I/O and communication ports.
| Parameter | Specification |
|---|---|
| Brand | Schneider Electric |
| Full Model | P1984X008 |
| Category | Programmable Logic Controller (PLC) |
| Dimensions (L x W x H) | 18.5 cm x 13.0 cm x 8.5 cm (7.28″ x 5.12″ x 3.35″) |
| Controller Weight | 1.20 kg (2.65 lbs) |
| Power Supply Input | 24 VDC Nominal (18 to 30 VDC Range) |
| Power Consumption | 15 W (Typical) |
| Processor Type | 16-bit Microcontroller (40 MHz) |
| Program Memory | 64 kB Flash (Ladder Logic + Function Blocks) |
| Data Memory | 16 kB RAM (Retentive with Battery Backup) |
| Digital Inputs | 12 Channels (24 VDC, Sink/Source) |
| Digital Outputs | 8 Channels (24 VDC, 0.5A Transistor) |
| Analog Inputs | 4 Channels (0-10 VDC or 4-20 mA) |
| Analog Outputs | 2 Channels (0-10 VDC or 4-20 mA) |
| Communication Ports | 1 x RS-232 (Programming) + 1 x RS-485 (Modbus RTU) |
| Modbus Support | Master or Slave (Software Selectable) |
| Baud Rate | 9600 to 115200 baud |
| On-Board Components | 1 Microcontroller IC + 2 Memory Chips + 1 Real-Time Clock + 4 Protection Diodes + 2 Optocouplers |
| Energy Storage | 2 x 470 µF Electrolytic Capacitors (35V) + 1 x 100 µF (16V) + 1 x CR2032 Battery (Data Retention) |
| Battery Backup Life | 5 Years (Typical for RAM Retention) |
| I/O Wiring | Removable Screw Terminal Blocks (12-pin + 10-pin) |
| Scan Time | 2 ms per 1 kB of Ladder Logic |
| Operating Temperature | 0°C to +55°C (32°F to 131°F) |
| Mounting Type | DIN Rail (EN 50022) or Panel Mount |
| Status Indicators | 1 Green LED (Power) + 1 Green LED (Run) + 1 Red LED (Fault) |
Energy Storage and Data Retention
The Schneider P1984X008 stores energy using three onboard capacitors. Two electrolytic capacitors filter the 24 VDC input for stable operation. A third capacitor provides hold-up energy during brief power interruptions. Additionally, a CR2032 lithium battery retains RAM data when the main supply turns off. Consequently, this controller preserves program variables and retentive values for years.
Integrated I/O and Communication Features
You will find 12 digital inputs and 8 digital outputs on removable terminal blocks. Four analog inputs and two analog outputs expand the controller’s measurement capabilities. The RS-232 port supports programming and HMI connectivity. The RS-485 port handles Modbus RTU networking for up to 31 slave devices. Thus, this PLC operates as a standalone controller or a network node.
Installation and Status Monitoring
Three LED indicators sit on the front panel for quick diagnostics. A green Power LED lights when the 24 VDC supply is present. A green Run LED flashes during normal program execution. A red Fault LED indicates hardware or software errors. The controller also includes a DIN rail clip for secure mounting.
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