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XL4 Prime Series, PLC / HMI Controller

XL4 Prime Series, PLC / HMI Controller


The XL4 Prime sets the standard for functionality and performance. The XL Prime Series of HMI Automation Controllers offers performance upgrades and a highly secure, modern memory architecture. This is accomplished with a new Horner designed System on Module (SOM) – containing a faster CPU, onboard mass storage and 100% non-volatile memory. The only battery is a small coin cell – simply tasked with maintaining the clock.

Automation Control with Easy Integration

If you are a new automation designer looking for an innovative, reliable control solution – the XL Prime Series offers a fully integrated product in hardware and software. If you are an existing XL Series user – your current application program will port straight through in less than 30 seconds. All units feature a built-in logic engine, operator interface, networking, and expandable I/O.

Horner App Enabled
The Horner App is the first automation app to give customers the ability to access all WebOCS enabled controllers with their iOS or Android phone or tablet.


The XL Prime Series features all-in-one control and performs all machine functions in a unified hardware design: Logic Control, Operator Interface, I/O, and Networking. This HMI controller is designed with a modern memory architecture based on a custom designed SOM (System on Module) utilizing a powerful ARM microprocessor and 100% non-volatile memory for reliability. With high-performance logic engines, the XL4 Prime automation controller offers fast scan times, solving user logic using Variable-based Advanced Ladder logic or the IEC 6-1131 language set.

Online Programming and Remote Control

Online programming is made available through WebMI, MQTT, and the Horner App, which also allows for remote control, and enables users to make logic changes without stopping the controller. Communication is based on Ethernet IP, Modbus TCP, BACnet IP, FTP file transfer, or email. Collected data can be logged including record machine and process variables, which can be saved to a microSD or USB Flash Drive.


Fast Processing and Response Time

The screen is a high-resolution color touchscreen that is capable of displaying detailed graphics and nearly instantaneous screen updates. The XL Prime Series of automation controllers also includes an advanced high-speed counter with four built-in counters supporting frequencies over 500 kHz.

Advanced Features of XL4 Prime Series HMI Controller for Automation

  • Logic engine features 1MB of application memory with a 0.02mS/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.

XL4 Prime PLC Model Lineup

HE-XPC1E0 No built-in I/O
HE-XPC1E2 12 DC in, 6 Relay Out, 4 – 12-bit Analog In
HE-XPC1E3 12 DC in, 12 DC Out, 2 – 12-bit Analog In
HE-XPC1E4 24 DC in, 16 DC Out, 2 – 12-bit Analog In
HE-XPC1E5 12 DC in, 12 DC Out, 2 – 14/16-bit Analog In (mA/V/Tc/mV/RTD), 2 – 12-bit Analog Out
HE-XPC1E6 12 DC in, 12 DC Out, 6 – 14/17-bit Analog In (mA/V/Tc/mV/RTD), 4 – 12-bit Analog Out

Special Order – XL4 Prime HMI Controller

Part Number Extension Description
-10 Thermistor option. Add -10 to the part number for Thermistor support for Analog Inputs 1 & 2. Models 2, 3, and 4 only.
-14 Thermistor option. Add -14 to the part number for (4) Channel Thermistor support. Model 2 only.
-22 With Display Heater
-33 DeviceNet Master option. Add -33 to the part number for DeviceNet Master Support (Polled & Explicit Connections only). CsCAN support is removed.
-44 SAE J1939 Option. Add -44 part number extension for SAE J1939 communications. CsCAN support is removed.
-200 CANOpen Firmware pre-loaded. CsCAN support is removed.
-602 Screw type I/O terminals. Replaces spring type terminals. Model 6 only.
-603 With Display Heater and Screw type I/O terminals. Replaces spring type terminals. Model 6 only
(*) Not available for purchase on the web store. Please call for product availability. Lead time on special order products is 4-6 weeks.

XL4 Prime HMI Specifications

HMI / PLC Automation Controller
Ladder Logic Memory 2 MB
Logic Scan Rate 0.02 mS/K
Removable Memory microSD
Local Comment Storage Yes
Floating Point Support Yes
AutoTune PID Capable Yes
Operator Interface
Characters / Pixels 320 x 240 (QVGA)
Display Technology 3.5″ TFT Color
Character Height selectable fonts
Number of Pages 1023
Fields or Objects per Page 1023
Total Keys 5
Function Keys 4
OEM Faceplate Available Yes
I/O – Input / Output
Built-in I/O Points 22-44
SmartStix, SmartRail, SmartBlock I/O Support yes, CsCAN and Ethernet
Digital Inputs / Outputs, max 2048 / 2048
Analog Inputs / Outputs, max 512 / 512
General Purpose Registers (words) 50000
General Purpose Internal Coils (bits) 32768 (16384 retentive)
Ethernet / Internet
Ethernet Support Standard
Remote Access WebMI, HTTP or EnvisionRV
Remote File Access FTP or EnvisionFX
IIoT Support MQTT (Sparkplug)
Serial Communications
Total Active Ports 2
RS-232 Ports / RS-485 Ports RS-232 & RS-485; RS-232 / RS-485 (1 of each)
PLC / Drive Protocols Yes
RTU / Modbus Commander / Responder (Master / Slave) Yes
Serial ASCII In / Out Yes
USB Ports (A and Mini-B) Yes
Integrated CAN Networks Standard
Supported CAN Networks CsCAN plus 1 of the following; CsCAN, CANopen Commander / Responder (Master / Slave), DeviceNet Master, SAE J1939
Maximum CAN Distance 500m per segment, 4 segments maximum
Programming over CAN Yes
Physical Specifications
Height 3.78″ / 96.0 mm
Width 3.78″ / 96.0 mm
Depth 2.26″ / 58 mm
I/O Module Depth COM option adds 0.5″ / 13 mm depth
Operating Specs and Standards
Operating Temperature* -0 to 60°C *Note: -40°C Low Temp Option, Contact Factory
Humidity (non-condensing) 5 to 95%
Product Certifications CE, C’, UL Class 1 Div II
Environmental Rating NEMA & UL Type 1, 3R, 4, 4x, 12, 12k, 13, ABS

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