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Contact: POWER DUKE
Phone: +86 18059884790
E-mail: plc66@qq.com
Add: fujian xiamen
- Warehouse: Spot
- Warranty： 365 days
- Quality: Original module
- Condition： New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat：18059884790
- E-mail: plc66@qq.com
Product Model: Proface LT3301‑L1‑D24‑C All-in-One HMI & Logic Controller (LT3000 Series)
1. Product Description
LT3301‑L1‑D24‑C is an integrated compact touchscreen HMI with built-in PLC logic control from Proface LT3000 series. It equips a 5.7-inch monochrome STN LCD with QVGA 320×240 resolution and 16 grayscale levels, powered by DC24V. This all-in-one unit integrates 16 digital sink/source inputs and 16 digital sink outputs without external PLC, featuring RS232C/RS422/485 serial port and USB Type-A host interface for program download and peripheral connection. It carries 132KB FLASH for logic programs and 128KB battery-backed SRAM, supports up to 3 EX expansion modules for analog/temperature signal expansion. The front panel is dustproof and oil-resistant, with wide operating temperature and strong vibration resistance, suitable for small-scale standalone automation without separate PLC equipment.
2. Core Product Functions
- Monochrome touch HMI operation: real-time data display, parameter setting, manual equipment jog control
- Built-in IEC61131-3 logic controller to run ladder logic without external PLC
- 32-point built-in DIO: digital signal collection from sensors and output control to relays/solenoids
- High-speed counter, pulse and PWM output for stepping/servo motor positioning control
- Serial communication via RS485 to connect inverters, temperature controllers and third-party PLCs
- USB port for GP-Pro EX programming download, data backup and USB printer alarm recording
- Support EX expansion modules to add analog input, analog output and Pt100/thermocouple temperature channels
Historical alarm storage, fault code display and real-time equipment status monitoring
3. Application Scenarios
- Small automated packaging machines, labeling machines and conveyor line control
- Water circulation pumps, small water treatment equipment and cooling tower control panels
- Food processing small mixers, oven temperature and conveying automation stations
- Small hydraulic punching machines, injection molding auxiliary peripheral control units
- Warehouse small sorting equipment, lifting platform and simple palletizing machines
Laboratory test benches, small heating furnaces and single-process industrial test equipment
4. Common Problems & Troubleshooting
Q1: Touch screen no backlight, blank screen after power-on
A: Check stable DC24V power supply input and terminal loose wiring; clean dust blocking ventilation slots causing overheat protection; backlight LED is non-replaceable on-site, return for factory repair if damaged.
Q2: Touch panel unresponsive or touch offset error
A: Wipe oil and dust on front touch film; execute touch calibration function in system setting menu; replace touch membrane if surface scratch causes signal failure.
Q3: Logic program data lost after power outage
A: Replace internal backup lithium battery; back up all project files to USB flash drive regularly; check battery holder poor contact or oxidation.
Q4: Serial communication failure with inverter or external controller
A: Verify consistent baud rate, address and communication protocol; replace shielded RS485 cable; separate signal wiring from high-power cables to reduce EMI interference.
Q5: Built-in digital input/output points fail to actuate
A: Check 24V field power for sensors and actuators; confirm wiring sink/source type matches module specification; inspect internal output circuit burnout caused by short-circuit load.
