In industrial automation and control systems, the human-machine interface serves as an interactive bridge between operators and underlying control devices, and its performance, reliability, and ease of use directly affect production efficiency and operational experience. The UniOP CP02 series compact HMI devices, as entry-level products in the UniOP family, are widely used in various fields such as mechanical equipment control, process automation, building automation, etc. due to their small size, rich functions, and high cost-effectiveness. This series includes two models, CP02F-02 and CP02R-04, which use vacuum fluorescent display screens and monochrome LCD display screens respectively, providing 2-line or 4-line information display capabilities, and equipped with up to 16 programmable function keys and LED indicator lights, supporting multiple communication extensions to meet the demanding needs of different industrial environments.
Product Series Overview
The CP02 series HMI panel is positioned as an entry-level product, but with exceptionally rich functions, inheriting the powerful functional system of the UniOP operator panel family. They support intuitive UniOP Designer 6 programming software, communication drivers for over 130 industrial devices, optional fieldbus modules, dual driver communication capabilities, recipe data storage, multilingual applications, powerful macro editors, alarm management, and eight level password protection, among other core functions.
2.1 Model Classification and Display Types
CP02F-02: Equipped with a vacuum fluorescent display (VFD), displaying 2 lines x 20 characters. VFD technology is known for its high brightness, high contrast, and wide viewing angle, and performs particularly well in low light or industrial environments that require high visibility. The character height is 5mm, and the display is clear and sharp.
CP02R-04: Adopting a monochrome LCD display screen, displaying 4 lines x 20 characters. The backlight is LED, with a typical lifespan of up to 100000 hours. The LCD solution has low power consumption and is suitable for application scenarios that are sensitive to energy consumption or require long-term stable operation. Support software contrast adjustment to adapt to different environmental lighting conditions. Simultaneously supports up to 8 user-defined characters for displaying special symbols or simple graphics.
2.2 Product positioning
The CP02 series is positioned between entry-level and mid-range in the UniOP product line, providing more function keys and stronger expansion capabilities compared to the CP01 series; Compared to higher end graphical HMIs, it maintains the simplicity and economy of the text display interface. This positioning makes it an ideal choice for many cost sensitive but functionally comprehensive industrial control projects.
Detailed explanation of display technology
3.1 Comparison between VFD and LCD Technologies
Vacuum Fluorescent Display (VFD): The VFD technology used in CP02F-02 is a self luminous display device that works similarly to a cathode ray tube, emitting light by electron bombardment of fluorescent powder. VFD has the following outstanding advantages:
High brightness: still clearly visible even in strong ambient light
High contrast: Self luminous characteristics bring excellent contrast performance
Wide viewing angle: a viewing angle close to 180 degrees, suitable for multi angle observation
Quick response: No ghosting, suitable for dynamic data display
Rich colors: usually presented in blue-green or amber, visually comfortable
However, VFDs also have limitations such as relatively high power consumption and inability to display custom characters.
Monochrome LCD: CP02R-04 uses LCD technology to adjust light transmittance by controlling the arrangement of liquid crystal molecules, relying on backlight illumination. Its advantages include:
Low power consumption: suitable for long-term operation and battery powered scenarios
Long lifespan: LED backlight has a lifespan of up to 100000 hours and requires almost no maintenance
Custom Characters: Supports 8 user-defined characters to enhance information expression ability
Software contrast adjustment: adapt to different environmental lighting conditions
3.2 Display Specifications
The character height of both models is 5mm, ensuring good readability at typical operating distances. The 2-line display of CP02F-02 is suitable for displaying key parameters and simple prompts, while the 4-line display of CP02R-04 can present richer information content and reduce page switching frequency.
Human Computer Interaction Design
4.1 Buttons and LED indicator lights
The CP02 series front panel is equipped with a rich system of buttons and indicator lights, providing users with intuitive operation and status feedback mechanisms.
Function keys: Up to 16 user programmable function keys that share key resources with the numeric keypad. Each function key is equipped with a sliding label bar, making it convenient for users to label the current function definition. Through the UniOP Designer software, these buttons can be configured for various operations such as page switching, data writing, alarm confirmation, and recipe calling. The label strip adopts a laser printable design, which is convenient for on-site production and replacement.
System keys: 7 dedicated system keys, including directional keys, confirm keys, return keys, etc., used for menu navigation and system operations. The system key layout has been optimized ergonomically and supports one handed operation.
User LED: 16 programmable LED indicator lights, corresponding one-to-one with function keys, used to display device status, alarm signals, or custom logic status. Each LED can be configured to turn on/off or flash through software, and the color is usually green or red (depending on the model and configuration).
System LED: One dedicated system LED indicator light used to indicate the basic operating status of the equipment, such as power indication, communication status, or hardware fault alarm.
4.2 Label Bar System
All function keys support sliding label bar design, allowing users to easily print and replace labels, quickly adapting to different application scenarios or operation stages. The label strip adopts standard size, and laser printable blank labels are provided as attachments for easy on-site production and customization.

Memory and Storage System
The CP02 series HMI is equipped with non-volatile memory for storing project files, recipe data, event logs, and multilingual text resources.
5.1 User Memory
Standard configuration: 512 KB user memory, used to store all project resources such as page definitions, variable configurations, text messages, etc.
Memory Expansion: Optional 512 KB memory expansion module, with a total user memory of up to 1 MB, to meet the storage needs of more complex projects.
5.2 Formula Storage
Dedicated recipe memory: 16 KB dedicated recipe storage space, supporting configuration and management of up to 255 parameter sets.
Formula transmission: Formula data can be transmitted to the upper computer through Ethernet connection, achieving centralized management and distribution of formulas.
Application scenario: Suitable for occasions that require frequent switching of production parameters, such as packaging machines, injection molding machines, food processing equipment, etc.
5.3 Event and Alarm Storage
Alarm quantity: Supports up to 1024 alarm definitions, covering various types such as equipment failures, process abnormalities, safety events, etc.
Event List: The system maintains 256 historical event records, including full lifecycle information such as alarm occurrence, confirmation, and recovery.
Ethernet transmission: Alarm and event information can be transmitted to the upper computer through Ethernet connection for centralized monitoring and analysis.
Communication capability
6.1 Built in communication interface
The CP02 series provides multiple built-in communication interfaces to adapt to different industrial network environments:
PLC port: Supports four physical layer interfaces: RS-232, RS-485, RS-422, and 20mA current loop, with communication rates configurable from 9600 to 38400 bps. This port can directly connect various brands of industrial equipment such as PLCs, frequency converters, and instruments to achieve data exchange and control command transmission.
PC/Printer Port: An independent PC/printer port used for project downloads, online debugging, or connecting to a serial printer to output reports and alarm lists.
Auxiliary port: a dedicated auxiliary port used to connect optional functional modules (such as fieldbus modules or Ethernet modules) and expand network communication capabilities.
6.2 Dual Drive Communication Capability
The CP02 series supports dual drive communication, which means that one HMI panel can exchange data with devices of two different communication protocols simultaneously. For example, two different brands of PLCs can be connected simultaneously, or PLCs and frequency converters can be connected simultaneously to achieve centralized display and control of multi device data without the need for additional protocol converters.
6.3 Optional fieldbus and Ethernet modules
Through auxiliary ports, the CP02 series can install various TCM/SCM series functional modules and support mainstream industrial network protocols:
Fieldbus module: Supports mainstream fieldbus protocols such as Profibus DP, CANopen, DeviceNet, Interbus, etc., enabling seamless integration of HMI into existing control systems for use as master or slave devices.
Ethernet module: supports standard Ethernet communication and achieves multiple functions:
Connect industrial Ethernet devices such as remote I/O, smart meters, etc
Programming and downloading HMI projects through Ethernet without the need for dedicated programming cables
Upload and download formula data to the upper computer
Alarm and event information transmitted to the monitoring system
Build UniNet network to achieve data sharing among multiple HMIs
6.4 UniNet Network
The CP02 series supports UniNet networks based on Ethernet and can achieve the following functions:
Data sharing: Real time data can be shared among multiple UniOP HMIs to build a distributed monitoring system
Client/Server Architecture: Supports client/server mode, flexibly adapts to different network topology requirements
OPC Server: In conjunction with UniNet OPC Server, HMI data can be provided to the upper computer SCADA system or MES system
Software and Programming
7.1 UniOP Designer 6
All CP02 series panels are developed using UniOP Designer 6 programming software. This software provides the following core functions:
Intuitive graphical development environment: Create display pages through drag and drop, place elements such as text, values, bar charts, etc., what you see is what you get.
Rich control library: Provides a variety of display controls and interactive controls to meet different application needs.
Communication driver library: Built in communication driver programs for over 130 industrial equipment, covering mainstream PLCs, frequency converters, instruments, etc., ensuring fast connection and stable communication.
Variable management: Supports an unlimited number of variable definitions, with variable types including bits, bytes, integers, floating-point numbers, strings, etc., to meet various data type requirements.
7.2 Multi language support
The CP02 series supports multilingual applications, and the number of languages at runtime is limited only by available memory. The main features include:
Unicode Text Export: All text information can be exported in Unicode format for professional translators to localize and translate.
Runtime language switching: The runtime can switch interface languages through function keys or variables to adapt to multilingual operating environments.
Character set support: Supports multiple language character sets, including Latin, Cyrillic, Chinese, Japanese, etc.
7.3 Macro Editor
The powerful macro editor allows users to write complex operation sequences for function keys and touch operations (if applicable). The local operations that macro functions can achieve include:
Page switching and page redirection
Variable reading, writing, and mathematical operations
Conditional judgment and logical control
Alarm confirmation and list navigation
Recipe calling and transmission
communication control
Through macro functions, many control logics that originally needed to be implemented in PLC can be directly completed in HMI, greatly reducing the programming burden of PLC and improving system response speed.
7.4 Report Printing
The CP02 series supports report printing function and can output various reports through a serial printer. The report format can be freely configured, including:
Real time data report
Historical Data Report
Alarm List Report
Event Record Report
Custom format report
Security mechanism
8.1 Password Protection System
The CP02 series provides an eight level password protection mechanism, which enables fine-grained permission control over system functions and page access
Eight level permission division: from the lowest permission (view only) to the highest permission (full control), different access levels can be assigned according to user roles.
Page level protection: Access permissions can be set for specific display pages to restrict unauthorized users from viewing or operating.
Functional level protection: Permission verification can be set for critical functions such as parameter modification, recipe download, and system settings.
Variable level protection: Read and write permissions can be set for sensitive variables to prevent system exceptions caused by misoperation.
8.2 Real time clock and battery
The CP02 series has a built-in hardware real-time clock (RTC) powered by a replaceable lithium battery, and its main features include:
Battery model: CR2430 3V lithium battery, capacity 270mAh, non rechargeable
Battery life: can maintain RTC operation for many years under typical conditions
User replaceable: The battery is designed with a replaceable structure for easy on-site maintenance
Time synchronization: RTC time can be used for alarm timestamps, event recording, data logs, etc

Electrical and Environmental Specifications
9.1 Power Requirements
Supply voltage: 18-30 VDC, typical value 24 VDC
Current consumption: Typical current of 0.3A when powered by 24 VDC
Fuse: 2A slow melting fuse with built-in overcurrent protection
9.2 Environmental conditions
The CP02 series offers two temperature level versions to adapt to different application environments:
Standard temperature version (-0045):
Working temperature: 0 to 50 ° C
Storage temperature: -20 to 70 ° C
Wide temperature version (-00A8):
Working temperature: -30 to 60 ° C
Storage temperature: -40 to 70 ° C
Precautions for wide temperature version:
The device can operate normally without damage within the range of -30 ° C to -20 ° C, but the display screen response speed may be slow
Normal display response speed requires a temperature of -20 ° C or above
After powering on the device for at least 25 minutes at an ambient temperature of -30 ° C, the internal temperature will rise to -20 ° C and the display screen will resume normal operation
Humidity requirements:
Working and storage humidity: 5-85% RH, no condensation
When operating at extreme temperatures, it is necessary to ensure that the relative humidity does not exceed the rated range to prevent condensation or static electricity issues
9.3 Protection level
Front panel protection level: IP65, dustproof, waterproof, suitable for industrial installation on site
Compliant with industrial installation requirements and suitable for control cabinet panel installation
9.4 Electromagnetic compatibility
The CP02 series design complies with industrial environmental electromagnetic compatibility standards:
Emission interference: EN 61000-6-4, 2001
Immunity: EN 61000-6-2, 2001
Physical dimensions and installation
10.1 External dimensions
Front panel dimensions: width 138 mm x height 186 mm (5.43 x 7.32 inches)
Installation hole size: width 117 mm x height 176 mm (4.61 x 6.50 inches)
Installation depth: 74 mm (2.92 inches)
Maximum panel thickness: 5 mm (0.2 inches)
Weight: 1.1 Kg
10.2 Installation method
The CP02 series adopts a standard panel installation method and is suitable for various control cabinets and workstations. The installation steps include:
Process rectangular openings on the control cabinet panel according to the opening size
Check that the panel thickness does not exceed the 5mm limit
Insert the HMI into the opening from the front
Install the fixed buckle from the rear and tighten it in place
Connect the power cord and communication cable
Attachments and extensions
11.1 Functional modules
Through auxiliary ports, the CP02 series can install various TCM/SCM series functional modules, including:
Profibus DP module: serves as a DP slave to connect to the Profibus network
CANopen module: supports CANopen protocol and connects to CAN network
DeviceNet module: acting as a DeviceNet slave device
Interbus module: supports Interbus fieldbus
Ethernet module: provides 10/100M Ethernet interface
11.2 Backup Battery
Model: CR2430 Lithium Manganese Battery, 3V, 270mAh
Replacement requirement: It is necessary to use batteries of the same model or equivalent specifications that are compatible with the working temperature of the product
Replacement cycle: Typically 2-5 years depending on the usage environment
11.3 Label Bar Attachment
Laser printable blank label strip for function key identification
Standard size, convenient for on-site production and replacement
Application Fields
The CP02 series compact HMI is widely used in the following industrial fields:
12.1 Mechanical Equipment Control
Packaging Machinery: Provides interfaces for parameter settings, production counting, and fault diagnosis
Plastic machinery: temperature control and pressure monitoring of injection molding machines and extruders
Machine tool: CNC machine tool operation panel, tool management, program selection
Textile machinery: process parameter setting, operation status monitoring
12.2 Process Automation
Water treatment: pump station control, water quality monitoring, alarm management
HVAC: temperature control, fan monitoring, energy consumption display
Food processing: formula management, batch control, cleaning procedures
12.3 Building Automation
Lighting control: scene control, timing setting, energy consumption monitoring
Elevator monitoring: floor display, fault alarm, maintenance prompt
Access control system: access control, event recording
12.4 Mobile and In Vehicle Applications
Construction machinery: operation terminals for cranes and excavators
Agricultural machinery: parameter display and control of harvesters and tractors
Special vehicles: equipment control for fire trucks and ambulances
