4P3040.00-K50 B & R Automation
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The B & R Automation 4P3040.00-K50 is part of the 4P Power Panels series and features a 5.7 inch monochrome LCD display with a resolution of 320 by 240 pixels and 40 membrane keys. It has 10 digital inputs, 8 digital outputs plus 1 dry relay, and operates with a supply voltage of 24 VDC while consuming up to 20 W. The panel is equipped with CAN and RS232 ports supporting maximum baud rates of 500 kbit/s and 115.2 kbit/s, and it provides a front protection rating of IP65.
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Product Description:
The 4P3040.00-K50 power panel is a compact operator terminal and logic controller manufactured by B&R Automation for the 4P Power Panels series. Within an automated line, it combines visualization, keypad entry, and program execution in one housing, allowing a single device to be mounted in the enclosure door. By interfacing directly with sensors, actuators, and higher-level networks, the panel serves as a local human-machine interface that drives machine sequencing and displays status messages to operators. Its integrated electronics eliminate separate PLC racks and external displays, simplifying wiring in small and medium machinery.
Electrical service is supplied at 24 VDC, and internal conversion limits power draw to a maximum of 20 W, so cabinet heat dissipation remains low. A monochrome LCD with a 5.7 in diagonal presents process graphics at a resolution of 320 × 240 pixels. Forty tactile membrane keys surround the screen, giving direct function selection even when gloves are worn. The aluminum front is sealed to IP65 (front), permitting washdown from cleaning hoses while the rear remains inside the panel. Firmware, recipes, and application code reside in 1.4 MB of FlashPROM, while 700 kB of battery-backed SRAM retains variables during cycles. These hardware resources support deterministic control tasks and simple operator dialogs.
Discrete connectivity is handled by 10 digital inputs for limit switches or proximity sensors and 8 digital outputs plus 1 dry relay output that can energize solenoids or provide potential-free signaling to external contactors. Serial diagnostics or barcode readers attach through an RS232 interface that negotiates up to 115.2 kbit/s. High-speed field communication to distributed I/O nodes is possible over the integrated CAN port, which supports bus traffic up to 500 kbit/s and follows standard 11-bit identifier framing. These channels, combined with the Flash and SRAM resources, allow the panel to manage moderate logic programs while still exchanging real-time data with drives and supervisory SCADA hosts.
