Stafford, Texas

XL4 Series HMI Controller, 3.5″ Touch Screen

XL4 Series HMI Controller, 3.5″ Touch Screen


The XL4 sets the standard for functionality and performance. All units feature a built-in logic engine, operator interface, and networking.

Full Ethernet Built into Every Unit
The XL4 model has built-in 100Mbps Ethernet. The XL4 Ethernet support includes an integrated Web Server, FTP Host, email, Modbus/TCP, Programming and much more.

  • Logic engine features 1MB of application memory with a 0.013mS/K logic scan
  • Online Programming Mode (making logic changes on the fly without going thru stop mode) is supported
  • Operator Interface features include a 320×240 LCD TFT color graphics display with a high resolution resistive touchscreen, 4 function keys and a system key
  • A USB 2.0 On-the-Go port (mini-B 5pin) is available for programming
  • A USB 2.0 Host port (A) is available for exchanging files with USB FLASH drives
  • One (1) RS-232 and one (1) 485 port support RTU/Modbus Commander / Responder (Master / Slave), ASCII In/Out, and PLC/Drive downloadable protocols
  • Networking features include a built-in 10/100 Ethernet port, and an integrated CsCAN port
  • All units feature a microSD slot, supporting at least 32GB


  • High performance logic controller with online programming
  • 3.5” QVGA color touchscreen for detailed graphics
  • Built-in digital and analog I/O with (2) 500kHz high- speed counters
  • 10/100 Ethernet for e-mail, web serving, FTP and Modbus/TCP
  • USB 2.0 ports for programming and FLASH drive support
  • 32GB microSD slot for application updates and virtually unlimited data logging


  • Custom OEM products
  • Power management & back-up generation
  • Semiconductor applications
  • Packaging machinery
  • Water treatment
  • Compressor control
  • Pump control
  • Food processing
  • Motion control
  • Distributed conveyor control
  • HVAC and Environmental control
  • Mobile machinery
  • Automotive parts manufacturing

The World’s Most Advanced 1/4 DIN All-In-One Controller

A milestone product setting the standard for functionality and performance. The XL4 shares the same 1⁄4 DIN form factor as our extremely popular XLE and XLT. The XL4 Series LCD TFT Display is full color with QVGA resolution and provides virtually instantaneous updates. Sunlight readable transflective and low-temperature versions are optional. The XL4 Series includes two USB 2.0 ports; Host port and an on-the-go port. The Host Port allows connection of removable FLASH drives, supporting drives up to 2TB. XL4 Series Online Programming allows the logic program to be modified on-the-fly without entering stop mode.

Advanced High Speed Counter (>5000KHZ), Data Logging, WebOCS

The 2-channel High Speed Counter accepts frequencies exceeding 500kHz, supporting a variety of modes including Totalizing, Quadrature, Pulse Measurement, Frequency Counting and Setpoint Controlled Outputs. With Horner WebMI, you can monitor and control plant data from the palm of your hand. Published directly from the OCS Controller, WebMI allows the same or unique Web pages to be monitored and controlled from your computer, tablet or other connected device. Developed completely within our Cscape environment, WebMI allows for state-of-the-art HTML5 development without the need for web programming skills. All of our OCS products can quickly and easily be configured for data logging. It only takes a few steps within Cscape to set up the data and frequency with which data can be logged to the on-board microSD card. Utilizing the data is just as simple – email, text, or even allow files to be transferred (.csv) via FTP.

XL4 Series HMI Controller Model Line-Up

No built-in I/O
12 DC in, 6 Relay Out, 4 – 12-bit Analog In
12 DC in, 12 DC Out, 2 – 12-bit Analog In
24 DC in, 16 DC Out, 2 – 12-bit Analog In
12 DC in, 12 DC Out, 2 – 14/16-bit Analog In (mA/V/Tc/mV/RTD), 2 – 12-bit Analog Out
12 DC in, 12 DC Out, 6 – 14/17-bit Analog In (mA/V/Tc/mV/RTD), 4 – 12-bit Analog Out