PR 4511 Communication Enabler

Description

• PR 4511 has full 4501 functionality for unit programming, process signal monitoring, and diagnostics handling
• Modbus RTU protocol is supported using a serial RS-485 communication wiring
• Multidrop half-duplex connection via shielded RJ45 connector
• High safe galvanic isolation of 2.5 kVAC between the serial wiring and the connected system 4000/9000 units
• Modbus parameters such as address, baud rate, stop bit(s), and parity bit are configured from the 4511 display, which also stores parameters

Applications for PR 4511

• The 4511 detachable display adds Modbus RTU RS-485 serial communications to all current and future 4000/9000 units
• The unit converts a wide array of sensors and analog device signals measured by the system 4000 like uni- and bipolar mA and voltage signals, potentiometer, Lin. R, RTD, and TC, to a Modbus communication line signal
• When mounted on a system 9000 device any signal coming from or going to I.S. classified area, like AI, AO, DI, and DO signals, can be converted to a Modbus network
• All individual unit operating parameters can easily and quickly be configured by using the Modbus communication or by using the front display menu
• The easily readable 4511 display can be used to read the process signal, simulate the output signal, indicate sensor errors and internal device errors

Mounting, Installation, and Programming

• Mounting in Zone 2 / Div 2
• The 4511 can be moved from one device to another
• The individual system 4000/9000 unit configuration of the first device can be saved and downloaded to subsequent devices
• Programmed parameters can be protected by a user-defined password
• When mounted on devices that are installed upside down, a menu item allows the display on the 4511 to be rotated 180o and the up/down buttons to switch function