The GT3U‑80 is an 80-point industrial PLC compatible with Mitsubishi FX3U that adds high-speed I/O, analog support, and Ethernet connectivity. Perfect for automation setups needing FX3U upgrades.
Product Overview
The GT3U‑80 is a high-performance industrial control board fully compatible with Mitsubishi FX3U modules and programming environments. It features advanced communication capabilities—typically including Ethernet—and high-speed digital and analog I/O support that make it ideal for scaling automation systems. Designed as a drop-in upgrade or alternative, it aims to offer the flexibility and performance users expect from FX3U controllers without vendor lock-in.
How to Use
- Mount the GT3U‑80 on a standard DIN rail and wire your inputs and outputs as per your control layout.
- Use the FX3U-compatible programming software (e.g. GX Developer) to write ladder logic—your existing FX3U projects should port easily.
- Take advantage of Ethernet (and potentially other serial interfaces) to handle remote I/O, HMI integration, or industrial networking.
- For analog I/O or high-speed counts, configure the module’s settings within your project—note that performance is optimized for fast real-time control loops.
- Verify each channel during commissioning with diagnostic LEDs to ensure proper I/O mapping.
Safety Considerations: Use good DC power grounding, verify isolation on analog channels, and maintain ambient conditions within the specified range for reliable operation.
This short video gives a review of another similar Lollette FX3U-compatible PLC series, which may help visualize the build quality and module setup.
Frequently Asked Questions (FAQ)
- Is the GT3U‑80 fully compatible with FX3U expansion modules?
Yes—it supports most FX3U modules (I/O, special function, analog, communication, etc.) in both hardware and software integration. - Does it support Ethernet?
Yes—Ethernet is a key feature for remote control and HMI integration. - What I/O capacity does it offer?
Delivers 80 I/O points; analog I/O and high-speed digital I/O also supported. - Can I reuse my existing FX3U ladder programs?
Yes—the programming environment is FX3U-compatible, making project transfer straightforward. - Does it support analog and high-speed functions?
Yes—it includes advanced analog capabilities and fast digital processing reserved for machine control. - What are the communication options?
Ethernet is built-in; other variants (e.g. RS‑232, RS‑485, CAN) are available in sibling models (GT3U‑20, GT3U‑32). - Who manufactures it?
Manufactured by Lollette (a China-based industrial controls supplier) and sold through their site and other channels. - Is it certified or CE compliant?
Official documentation doesn’t specify certifications; it’s best to ask the seller or check datasheets for CE, UL, or other marks. - What programming software is required?
Use standard Mitsubishi-compatible tools (such as GX Developer/Works), which should recognize the module as FX3U-compatible. - Is there support for remote I/O or expansion?
Expect compatibility with FX3U I/O extensions and remote modules that typically connect via Industries fieldbus standards.
User Review Summary
No extensive public user reviews are available specifically for the GT3U‑80. However, similar boards (like the LE3U/24MR series) have been showcased and tested by users in forums or social media, often highlighting compatibility ease and good value for FX3U-style applications. For instance, a demonstration on YouTube shows a working ladder logic upload and I/O scan using FX3U-based tools.
Comparison with Competing Products
- GT3U‑80 (Lollette) vs. Mitsubishi FX3U‑80MR: Offers similar I/O and programming compatibility at likely lower cost, but OEM version may have stronger official certification/trust.
- GT3U‑80 vs. GT3U‑20 or GT3U‑32: GT3U‑20 is smaller (20 I/O) with Ethernet & RS‑232; GT3U‑32 offers 16 I/O plus multiple serial interfaces and CAN bus—choose based on scale or specific interface needs.
Technical Specifications
Although Lollette doesn’t publish a full spec sheet, typical features include:
- 80 total I/O points (digital/relay/analog)
- High-speed I/O processing
- Built-in Ethernet (others may add RS‑232, RS‑485, CAN)
- FX3U hardware/software compatibility for ladder programming and modular extension
Brand or Manufacturer Info
Lollette is a China-based supplier of industrial automation components—they offer FX3U-compatible PLCs and control boards intended as cost-effective alternatives to OEM Mitsubishi units.
Purchase Recommendations
Lollette：https://www.lollette.com/gt3u-80-plc-industrial-control-board-fx3u-compatible