

The Proface LT-4201M DIO Model is a high-performance human-machine interface designed for demanding discrete control applications. Featuring a 3.5-inch QVGA display with 65,536 colors, this unit combines a compact footprint with powerful I/O capabilities. The LT-4201M DIO Model integrates 20 standard digital inputs (including 2 fast inputs) and 10 standard digital outputs (with 2 fast outputs), enabling direct machine control without additional I/O modules. With 16MB of memory, Ethernet and USB connectivity, and a 24Vdc power supply, it delivers reliable operation in tight spaces. This model is 100% original and new, ensuring long-term availability and support for your automation projects.
| Display Size | Product Name | Display Color | Memory | Interface | DIO | AIO | Rated Voltage |
|---|---|---|---|---|---|---|---|
| 3.5" (QVGA) | LT-4201M DIO Model | 65,536 colors max | 16MB | Ethernet x 1, Serial x 1, USB (Type A) x 1, USB (mini-B) x 1 | 20 Points Standard Input (including 2 Points for Fast Input), 10 Points Standard Output and 2 Points Fast Output | - | 24Vdc |
| 3.5" (QVGA) | LT-4201M Analog Model | 65,536 colors max | 16MB | Ethernet x 1, Serial x 1, USB (Type A) x 1, USB (mini-B) x 1 | 12 Points Standard Input (including 2 Points for Fast Input), 6 Points Standard Output and 2 Points Fast Output | 2 ch analog inputs (13-bit), 2 ch analog inputs (16-bit) for Thermocouple, 2 ch analog outputs (12-bit) | 24Vdc |
| 5.7" (QVGA) | LT-4301M DIO Model | 65,536 colors max | 16MB | Ethernet x 1, Serial x 1, USB (Type A) x 1, USB (mini-B) x 1 | 20 Points Standard Input (including 2 Points for Fast Input), 10 Points Standard Output and 2 Points Fast Output | - | 24Vdc |
| 5.7" (QVGA) | LT-4301M Analog Model | 65,536 colors max | 16MB | Ethernet x 1, Serial x 1, USB (Type A) x 1, USB (mini-B) x 1 | 12 Points Standard Input (including 2 Points for Fast Input), 6 Points Standard Output and 2 Points Fast Output | 2 ch analog inputs (13-bit), 2 ch analog inputs (16-bit) for Thermocouple, 2 ch analog outputs (12-bit) | 24Vdc |
| Rear Module | Rear Module DIO Model | - | 16MB | Ethernet x 1, Serial x 1, USB (Type A) x 1, USB (mini-B) x 1 | 20 Points Standard Input (including 2 Points for Fast Input), 10 Points Standard Output and 2 Points Fast Output | - | 24Vdc |
| Rear Module | Rear Module Analog Model | - | 16MB | Ethernet x 1, Serial x 1, USB (Type A) x 1, USB (mini-B) x 1 | 12 Points Standard Input (including 2 Points for Fast Input), 6 Points Standard Output and 2 Points Fast Output | 2 ch analog inputs (13-bit), 2 ch analog inputs (16-bit) for Thermocouple, 2 ch analog outputs (12-bit) | 24Vdc |
Note: Fast input and fast output points are designed for high-speed counting and pulse control. All models are 100% original and new, available for immediate shipment.

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22