The 2711-B5A2L1 Panelview by Allen Bradley is a keypad and touchscreen input terminal. It has a DH-485 port for communication, although it does not contain a printer port. With a 240 kilobyte nonvolatile memory in addition to its 170 kilobyte RAM memory, this module has adequate storage for its usual applications. This module’s touchscreen has a 256 x 128 resolution and a display area is roughly 120 by 60 millimeters and 140 millimeters diagonally and is an LCD display in blue monochrome. Its keypad is comprised of an F1 through F10 function keypad in addition to a numeric keypad for greater input flexibility. It has a 1-million-press average actuation. The 2711-B5A2L1 should be operated in a temperature zone greater than 0 degrees Celsius, but lower than 55 degrees Celsius. Its storage temperature zone is -20 to 70 degrees Celsius and it SHOULD NOT be mounted higher than 2000 meters or 6561 feet at the highest. Overall, it dissipates around 20 Watts of heat at an approximate rate of 69 BTU per hour.

The 2711-B5A2L1 module contains a clock that will timestamp all of the user’s crucial data. It is battery backed, in addition to being set in real time. This unit also has an LED backlight which lights up the module’s front panel for around 100,000 hours before deterioration. It can be kept in a variety of enclosure, with NEMA Type 4X specifically for indoor use only. Other enclosure ratings include NEMA Type 12, NEMA Type 12, IEC IP54, and IP65. The “L1” extension at the end of this Panelview Cat. number, 2711-B5A2L1, indicates that the Panelview is specifically a DC input power module. It has a nominal, 24 Volt DC input voltage and consumes around 18 Watts of power at maximum (or 0.75 A at 24 Volts of DC). This module weighs approximately 2.7 pounds and measures approximately 6.57 x 10.47 x 4.17 inches.

The Allen-Bradley 2711-B5A2L1 is a Human Machine Interface (HMI) that is part of the Bulletin 2711 PanelView 550. This product family is an obsolete product line as it has been replaced by newer generations of operator terminals such as the PanelView Plus operator terminals.

The 2711-B5A2L1 is able to perform data exchange between controllers via the integrated DH485 communication port. The integrated DH485 port is basically designed for peer-to-peer connection however, it may be expanded and connect to a Devicenet network with the use of PanelView standard interface modules including a Personal computer interface converter, used to convert RS-232 signals to and from DH-485 signals (1747-PIC), Isolated link coupler for DH-485 network with catalog number 1747-AIC and Micrologix advanced interface converter module with catalog number1761-NET-AIC.

The 2711-B5A2L1 boasts of a dual operator input interface. These interfaces are the Keypad assembly and the touch sensitive screen. The keypad assembly is comprised of Ten (10) function keys, F1 to F10, numerical, directional and confirmation keys. The embedded touchscreen is activated by the embedded touch membrane that is installed along the display area. Both the keypad and the touchscreen interface are expected to operate up to 1 million actuations.

The 2711-B5A2L1 PanelView 550 operation may be designed to accurately display or mimic the process or machine.