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Known model facts
| Label | Value |
|---|---|
| Digital inputs / outputs | 40 / 40 |
| Output choices | 40 relay (MR); 40 transistor (MT); 32 relay + 8 transistor (MRT) |
| Analog I/O family column | 10 AD / 2 DA |
| High-speed output | None on MR; 8 channels on MT/MRT |
| Communication | 1 RS232 + 2 RS485 (shared series reference) |
Product overview
This page uses LK3U-80-10AD-2DA as a selection label for the LK3U-80 size family with the manufacturer table’s 10 AD / 2 DA column. The manufacturer publishes the order rows as LK3U-80MR, LK3U-80MT and LK3U-80MRT; it does not publish this complete page label as one order code. The web table lists 40 digital inputs and 40 outputs. MR supplies 40 relay outputs and no high-speed output; MT supplies 40 transistor outputs with eight high-speed channels; MRT combines 32 relay and eight transistor outputs with eight high-speed channels. The manufacturer web table lists 307×125×56 mm. The reviewed manual does not contain a separate LK3U-80 shell row, so confirm dimensions, the physical revision and the complete output suffix before ordering.
Key highlights
| Highlight | Published value |
|---|---|
| Digital I/O | 40 / 40 |
| Analog I/O family column | 10 AD / 2 DA |
| High-speed output | 8 channels on MT/MRT; none on MR |
| Communication | 1 RS232 + 2 RS485 (shared series reference) |
Technical specifications
| Specification | Published value |
|---|---|
| Published order rows | LK3U-80MR / LK3U-80MT / LK3U-80MRT |
| Digital inputs / outputs | 40 / 40 |
| Relay outputs (MR) | 40 |
| Transistor outputs (MT) | 40 |
| Mixed outputs (MRT) | 32 relay + 8 transistor |
| Analog I/O family column | 10 AD / 2 DA |
| High-speed inputs | 2 by default; up to 6 configurable (series manual) |
| High-speed outputs | 8 on MT/MRT; none on MR |
| Maximum high-speed output frequency | Y0–Y5 up to 200 kHz; Y6–Y7 up to 100 kHz (series manual) |
| Communication ports | 1 RS232 + 2 RS485 (series manual) |
| Input power | DC 24V ±10%, 1A (series manual) |
| Program capacity | 32,000 steps (series manual) |
| Manufacturer web-table dimensions | 307×125×56 mm |
| Manual model-specific dimensions | Not published for LK3U-80 |
| Complete suffix requirement | Select MR, MT or MRT and any optional interface explicitly |
Product gallery
Technical drawings and reference images
Features
- 40 digital inputs and 40 outputs in each published LK3U-80 output configuration
- Eight high-speed transistor outputs on MT/MRT; MR has no high-speed output
- 10 AD / 2 DA in the manufacturer family table and three shared serial ports in the manual
Applications
- Packaging equipment (sealing, cutting, labeling)
- Multi-axis motion and servo/stepper positioning
- Water and fluid treatment systems
- Retrofit and replacement projects
Selection notes
Frequently asked questions
How many servo axes can the LK3U-80-10AD-2DA control via pulse output?
The published LK3U-80 MT and MRT rows provide eight high-speed transistor outputs, while MR provides none. The shared manual rates Y0–Y5 up to 200 kHz and Y6–Y7 up to 100 kHz; confirm the complete installed suffix before treating those channels as available.
What is the difference between the LK3U-80-10AD-2DA and adjacent models in the LK3U series?
Adjacent models in the LK3U series differ primarily in I/O point count and analog input channels. The suffix convention (e.g. 14-4AD-2DA) indicates total I/O points, analog input channels, and analog output channels. Choose the model with sufficient I/O and analog capacity for your application.
What programming software is used with the LK3U-80-10AD-2DA?
All LK PLC series use GX Developer or GX WORKS2 programming software. The connection is via RS232 serial port (or USB-to-RS232 adapter).
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