LK3U-24-6AD-2DA Compact PLC
- Available in relay, transistor, and mixed output types
- Default 2 high-speed input channels, expandable by 4 more channels
- Supports 0-10V, 0-20mA, NTC10K, NTC50K, and PT100
- Optional CAN expansion for PLC or module connection
- Optional 2-channel weighing function with 24-bit acquisition
- Optional Ethernet port supporting MELSOFT and MODBUS TCP
Model Options
Choose the output type based on your application requirements
LK3U-24MR-6AD-2DA
12 NPN inputs, DC24V
12 relay outputs
Load: AC250V / DC0V-DC30V < 3A
LK3U-24MT-6AD-2DA
12 NPN inputs, DC24V
12 transistor outputs
Load: DC24V < 0.5A, NPN output
LK3U-24MRT-6AD-2DA
12 NPN inputs, DC24V
8 transistor + 4 relay outputs
Mixed output type
Optional Functions
Configure the PLC based on signal, motion, communication, and weighing requirements
High-Speed Input Expansion
- Default 2 high-speed input channels
- X0: 60kHz, X1: 10kHz
- Optional additional 4 channels
- X3: 60kHz, X2 / X4 / X5: 10kHz
Analog & Temperature Input
- Default analog type: 0-10V
- Optional current type: 0-20mA
- Optional NTC10K: -40 to 150°C
- Optional NTC50K: -40 to 209°C
- Optional PT100: -40 to 150°C
CAN Expansion
- Optional CAN expansion supported
- Two CAN usage types available
- Can connect LK3U PLC
- Can connect LK3U modules
Weighing Function
- Optional 2-channel weighing function
- 24-bit acquisition precision
- 5V four-wire sensor support
- Signal range: -20mV to +20mV
- Refresh frequency: 10Hz
Ethernet Communication
- Optional 1 Ethernet port
- Supports MELSOFT connection
- Supports MODBUS TCP
High-Speed Output
- 4 channels high-speed pulse output
- 200kHz × 4 channels
- Suitable for motion-related control tasks
Why Choose LK3U-24-6AD-2DA
Integrated digital control, analog processing, communication, and optional expansion in one compact PLC platform
| Feature | LK3U-24-6AD-2DA | Project Value |
|---|---|---|
| Digital I/O | 12 NPN inputs / 12 outputs | Compact I/O structure for small automation systems |
| Analog Processing | 6 analog inputs / 2 analog outputs | Suitable for mixed signal monitoring and control |
| Communication | 2 × RS485 + 1 × RS232 | Flexible connection for HMI, serial devices, and control integration |
| High-Speed Pulse Output | 4 × 200kHz | Supports pulse and motion-related applications |
| High-Speed Input Expansion | Default 2 channels, optional +4 channels | More flexibility for counting and encoder tasks |
| Signal Types | 0-10V / 0-20mA / NTC10K / NTC50K / PT100 | Supports voltage, current, and temperature input options |
| Optional Expansion | CAN / Weighing / Ethernet | Better fit for customized control projects |
| Software Compatibility | GX Developer / GX Works2 | Convenient for FX3U-related programming workflows |
Applications
Suitable for compact automation projects requiring digital control, analog processing, motion control, and flexible communication.
Small Automation Equipment
Suitable for compact machines and control cabinets that require 12 digital inputs, 12 outputs, analog I/O, and serial communication.
Temperature Monitoring
Supports NTC10K, NTC50K, and PT100 input options for temperature-related monitoring tasks.
Analog Signal Control
Supports 0-10V and 0-20mA signal acquisition and output for analog monitoring and control applications.
Motion & Pulse Control
High-speed pulse output and configurable high-speed inputs support motion-related control requirements.
Weighing Systems
Optional weighing function supports 2-channel signal acquisition for weighing-related control systems.
Device Networking
With RS485, RS232, optional CAN, and optional Ethernet, it fits systems requiring multi-device communication.
Specifications
| Product Model | LK3U-24-6AD-2DA |
| Digital Input | 12 NPN inputs, DC24V |
| Digital Output | 12 outputs (relay / transistor / mixed) |
| Relay Output Load | AC250V / DC0V-DC30V < 3A |
| Transistor Output Load | DC24V < 0.5A, NPN output |
| Mixed Output | 8 transistor + 4 relay outputs |
| Analog Input | 6 channels |
| Analog Output | 2 channels |
| Default Analog Type | 0-10V |
| Optional Analog Types | 0-20mA, NTC10K, NTC50K, PT100 |
| Communication | 2 × RS485, 1 × RS232 |
| High-Speed Input | Default 2 channels: X0 60kHz, X1 10kHz |
| Expanded High-Speed Input | Optional +4 channels: X3 60kHz, X2 / X4 / X5 10kHz |
| High-Speed Output | 4 channels, 200kHz × 4 |
| CAN Expansion | Optional, for LK3U PLC or LK3U modules |
| Weighing Function | Optional 2 channels, 24-bit |
| Weighing Sensor | 5V four-wire sensor |
| Weighing Signal Range | -20mV to +20mV |
| Weighing Refresh Rate | 10Hz |
| Ethernet | Optional 1 port |
| Ethernet Protocol | MELSOFT, MODBUS TCP |
Need the Right LK3U-24 Model for Your Project?
Select MR, MT, or MRT output type and configure optional functions such as CAN, weighing, temperature input, or Ethernet based on your application requirements.
FAQ
Is this PLC compatible with FX3U?
Yes. It is designed for FX3U-compatible programming workflows and supports GX Developer and GX Works2.
What analog signal types are supported?
Default analog input is 0-10V. Optional types include 0-20mA, NTC10K, NTC50K, and PT100.
Does it support high-speed pulse control?
Yes. It supports high-speed pulse input and 4 channels of 200kHz high-speed pulse output.
Can it support weighing applications?
Yes. Optional 2-channel weighing is available with 24-bit acquisition, 5V four-wire sensor support, and -20mV to +20mV signal range.
Does it support Ethernet communication?
Optional 1-port Ethernet is available and supports MELSOFT connection and MODBUS TCP.