The Renu Electronics FL004-0806R-V2 is an expandable micro PLC from the FlexiLogics ECO series, designed to deliver complete control and connectivity in a single, compact hardware package. With its 32-bit RISC processor, 13K steps program memory, and rich built-in I/O, it is ideally suited for factory floor operations, small local control tasks, and as a local controller for larger PLC systems connected via MODBUS.

Built-in I/O and Expandability

The FL004-0806R-V2 provides a solid foundation with 8 bidirectional digital inputs and 6 relay outputs rated at 2A per point. For applications requiring additional capacity, the system can be expanded with up to 8 plug-in I/O modules. These modules cover both digital and analog types, including linear and non-linear analog inputs and load cell interfaces. Analog modules feature individual channel configuration, which greatly reduces installation footprint and optimizes cost. This modular approach allows the controller to scale precisely with application needs without replacing the core unit.

High-Speed Counting and Motion Control

The FL004-0806R-V2 excels in applications requiring precise high-speed counting and basic motion control. It supports flexible high-speed counter configurations: 2 single-phase HSC inputs up to 25kHz, or 8 single-phase HSC inputs up to 10kHz. For quadrature inputs, it supports 2 pairs up to 10kHz or 4 pairs up to 5kHz. Additionally, the PLC is equipped with 3 independent PWM outputs capable of up to 10kHz each, making it suitable for simple positioning, frequency generation, and basic servo/stepper control tasks.

Communication and Connectivity

Connectivity is a key strength of the FL004-0806R-V2. It features two serial ports (1 x RS232 and 1 x RS485) supporting the MODBUS RTU protocol, enabling seamless integration with HMIs, SCADA systems, and other industrial devices. A USB device port (Type-C or Micro 2.0) provides a convenient connection for programming and configuration. Additional serial protocols can be added upon request, and the system includes 3.7kV isolation to ensure robust operation in electrically noisy environments.

Programming Software and Ecosystem

The FL004-0806R-V2 is programmed using FlexiSoft, a Windows-based software tool that can be downloaded free of charge from the manufacturer's website without any license fees. FlexiSoft supports the IEC 61131-3 standard programming environment as well as native ladder logic programming, providing flexibility for engineers with different programming preferences. The software environment simplifies application development, debugging, and maintenance, helping to reduce engineering time and costs.

Applications

The Renu Electronics FL004-0806R-V2 is ideally suited for a variety of industrial automation applications, including:

• Factory floor operations and small local control systems
• Local controller for larger PLCs connected via MODBUS
• Packaging machinery and material handling
• Pump control and valve sequencing
• Small to mid-scale machine automation

Technical Specifications