B&R Power Panel 4P3040.01-490 (Series PP41)

The B&R Power Panel 4P3040.01-490 (Series PP41) is a high-performance, integrated HMI and PLC controller.¹ It belongs to the legacy “Power Panel” family by B&R Industrial Automation, designed to serve as both the operator interface and the central processing unit for small to medium-sized machines.

Below is the technical description in English:

1. Display and User Interface

Unlike modern full-touch panels, the PP41 relies on a combination of a graphical display and a robust physical keypad for industrial reliability.

• Display Type: 5.7-inch Monochrome LCD (Black/White).²

   

• Resolution: QVGA (³$320 \times 240$ pixels).⁴

   

• Backlight: High-contrast display with a brightness of 150 cd/m².⁵

   

• Operator Keys: * 32 Function Keys: Many are user-programmable for specific machine tasks.⁶

   

  • 8 Softkeys: Located near the screen for context-sensitive commands.⁷

     

  • Numeric & Cursor Keys: Total of 24 additional keys for data entry and navigation.

2. Internal Controller (CPU & Memory)⁸

The PP41 is not just a screen; it contains a built-in PLC (Programmable Logic Controller) based on the B&R 2003 CPU system.⁹

• Processor: System-compatible 2003 central processing unit.¹⁰

   

• Memory: * SRAM: 700 KB (for user data/variables).¹¹

   

  • User FlashPROM: 1.4 MB (for storing the machine program).

  • System FlashPROM: 600 KB.¹²

     

• Data Retention: Uses a 3V Lithium battery (¹³$950 \text{ mAh}$) to keep data in memory when powered off.¹⁴

   

3. Connectivity and I/O

The unit is highly expandable and can communicate with various industrial networks.¹⁵

• Standard Ports:

  • 1x RS232: 9-pin DSUB male connector for programming or serial communication.¹⁶

     

  • 1x CAN Interface: Electrically isolated and network-capable.¹⁷

     

• Integrated I/O:

  • 10 Digital Inputs: 24V DC.¹⁸

     

  • 8 Digital Outputs:¹⁹ 24V DC, 0.4 A.²⁰

    +1

     

  • 1 Relay Contact: “Dry” contact for signaling or safety.²¹

     

• Expansion: Features 6 slots for B&R 2003 screw-in modules and 1 PCMCIA slot for memory expansion or wireless cards.²²

   

4. Technical Specifications

5. Maintenance Note

This model is now a Legacy (Discontinued) product.²³

• Programming: It is typically programmed using B&R Automation Studio.

• Battery: If your screen loses its program or clock settings after a power cut, the internal lithium battery likely needs replacement.

• Repair: Since these units are robust and made of aluminum/plastic, they are often repaired by specialists rather than replaced with newer models to avoid rewriting the PLC code.