Operator Interface Board for DP Controller

Product Specifications

Technical details and manufacturing context for Operator Interface Board

Definition

The Operator Interface Board is a critical component within the DP Controller that facilitates human-machine interaction. It serves as the hardware platform for connecting input devices (buttons, switches, touchscreens) and output indicators (LEDs, displays) to the controller's main processing unit. This board translates operator commands into electrical signals for the controller and displays system status information back to the operator. The board is designed for industrial environments, with a front panel rated IP54 per IEC 60529, and operates within a temperature range of -20 to 60 °C (non-condensing). It accepts a supply voltage of 24 V DC ±10% with reverse polarity protection, and consumes no more than 15 W with all LEDs on. The board includes a monochrome LCD display with a resolution of 128×64 pixels and an adjustable backlight brightness of 300–500 cd/m². It features a keypad with a life of at least 1,000,000 cycles per key. Communication with the DP Controller is via an RS-485 interface using Modbus RTU protocol, conforming to TIA/EIA-485. The board measures 190×120×45 mm (W×H×D) with a panel cutout of 178×108 mm, and weighs no more than 0.5 kg without packaging. It is constructed on an FR-4 PCB substrate with copper traces, populated with electronic components such as resistors, capacitors, and ICs, and equipped with connectors for input/output devices. The board is intended for use in machinery and equipment manufacturing applications where reliable operator control and status indication are required. For specific model configurations, always verify the exact values and standards with the legal manufacturer or supplier.

Working Principle

The board receives low-voltage signals from input devices through connectors, conditions these signals (debouncing, filtering), and transmits them to the DP Controller's main processor via communication buses. Simultaneously, it receives status data from the controller and drives output devices accordingly. It typically includes voltage regulation, signal conditioning circuits, and communication interfaces.

Common Materials

FR-4 PCB substrate, Copper traces, Electronic components (resistors, capacitors, ICs), Connectors

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	24 ±10% V DC	Reverse polarity protected
Power Consumption	≤15 W	Max with all LEDs on
Operating Temperature	-20–60 °C	Non-condensing
Storage Temperature	-40–85 °C	In original packaging
Relative Humidity	10–90 %	Non-condensing
Ingress Protection	IP54	Front panel onlyIEC 60529
Display Resolution	128×64 pixels	Monochrome LCD
Keypad Life	≥1,000,000 cycles	Per key
Backlight Brightness	300–500 cd/m²	Adjustable
Communication Interface	RS-485	Modbus RTUTIA/EIA-485
Dimensions (W×H×D)	190×120×45 mm	Panel cutout 178×108
Weight	≤0.5 kg	Without packaging

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Circuit Board
The board itself: the substrate and copper traces that carry power and signals between the parts on it.
Microcontroller
Processes input signals and manages communication with main controller

Material: Silicon semiconductor
Input Connectors Part
Provide physical connection points for operator input devices

Material: Phosphor bronze contacts with plastic housing
Output Drivers Part
Amplify signals to power status indicators and displays

Material: Semiconductor transistors and ICs
Voltage Regulator
Converts and stabilizes input voltage for board components

Material: Semiconductor voltage regulator IC

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Operator Interface Board.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

DP Controller

View system integration details

Manufacturers of Operator Interface Board

Manufacturer profiles associated with Operator Interface Board.

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Frequently Asked Questions

What is the supply voltage range for the Operator Interface Board?

The board accepts a supply voltage of 24 V DC with a tolerance of ±10%, and it is reverse polarity protected. Always confirm the exact requirements with the manufacturer for your specific model.

What communication interface does the board use?

The board uses an RS-485 interface with Modbus RTU protocol, conforming to TIA/EIA-485. This allows communication with the DP Controller's main processor.

What is the ingress protection rating of the front panel?

The front panel is rated IP54 according to IEC 60529, meaning it is protected against dust and water splashes. This rating applies to the front panel only.

What are the operating temperature limits?

The board operates in a temperature range of -20 to 60 °C, non-condensing. For storage, the range is -40 to 85 °C in original packaging. Verify these values with the manufacturer for your application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	N/A (board-level component, not exposed to process pressure)
other spec:	Humidity: 10-90% non-condensing, Vibration: ≤5g, IP Rating: IP20 (indoor use only)
temperature:	0°C to 50°C (operating), -20°C to 70°C (storage)

Operator Interface Board

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards