NCV-20NGNMP Programmable Logic Controller for Industrial Automation

Product Overview

The NCV-20NGNMP is a compact programmable logic controller designed for industrial automation applications that require reliable logic control, timing, counting, and communication. This PLC is suitable for standalone machine control, small production cells, and building automation systems. The NCV-20NGNMP integrates a CPU, power supply, and I/O terminals in a single housing, reducing installation complexity. It is typically programmed using ladder logic or instruction list via dedicated software. The controller is built to withstand industrial environments with wide temperature range and electrical noise immunity.

Key Features of NCV-20NGNMP

The NCV-20NGNMP offers a mix of digital inputs (typically 12) and digital outputs (typically 8) with transistor output type (sinking or sourcing). Inputs are 24 V DC and can be configured as sinking or sourcing. Outputs are rated at 0.5 A per point. The controller includes high-speed counters (up to 2 channels, 10 kHz) and pulse outputs (2 channels, 10 kHz) for positioning applications. Communication ports include an RS-232 port for programming and an RS-485 port supporting Modbus RTU for connection to HMIs or drives.

Program memory capacity is about 4K steps, and data memory includes 2K registers. The unit includes a real-time clock for time-stamped logging. The NCV-20NGNMP has removable terminal blocks for easy wiring replacement. It supports up to 4 expansion modules for additional I/O. The controller is powered by 24 V DC and consumes approximately 5 W. It features diagnostic LEDs for power, run, error, and I/O status. The unit is DIN rail mountable and has an IP20 protection rating.

Technical Specifications

• Manufacturer: NCV / Industrial OEM

• Part Number: NCV-20NGNMP

• Product Type: Programmable Logic Controller

• Digital Inputs: 12 (24 V DC, sinking/sourcing selectable)

• Digital Outputs: 8 (transistor, 24 V DC, 0.5 A per point)

• High-Speed Counters: 2 channels, 10 kHz max

• Pulse Outputs: 2 channels, 10 kHz max

• Program Memory: 4K steps (flash)

• Data Memory: 2K words (retentive with battery)

• Communication Ports: RS-232 (programming), RS-485 (Modbus RTU)

• Real-Time Clock: Yes, battery-backed

• Expansion Modules: Up to 4

• Power Supply: 24 V DC (20.4-28.8 V)

• Power Consumption: 5 W typical

• Operating Temperature: -10 to +55 °C

• Degree of Protection: IP20

• Mounting: DIN rail (35 mm)

• Certifications: CE, RoHS

Functional Description

The NCV-20NGNMP executes its ladder logic program in a cyclic scan. Input values are read, logic solved, and outputs updated. High-speed counters operate independently and their current values can be accessed by the program. The Modbus port allows the PLC to act as a slave or master, exchanging data with an HMI or other controllers. The real-time clock can trigger time-based events. The battery retains program and data during power loss; the program is also stored in flash. The pulse outputs can be used to control stepper motors directly.

Applications

This PLC is suitable for small packaging machines, conveyor control, irrigation systems, and automated test stands. It is also used as a drop-in replacement for failed controllers in legacy equipment.