4511 Communication Enabler

Brand: PR Electronics

  • Programming display for system 4000 and 9000 devices
  • Modbus RTU protocol interface over RS-485
  • Monitor process value from the built-in display
  • High 2.5 kV isolation to host unit
  • Shielded RJ45 connector on top
  • 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.


Approvals & Certifications

  • ATEX 2014/34/EU DEKRA 13-ATEX-0098 X
  • DNV Marine Standard F. Certificate No. 2.4
  • EAC TR CU 020/2011
  • EMC 2014/30/EU
  • FM 0003049132-C
  • IECEx DEK 13.0026 X
  • LVD 2014/35/EU
  • UL 61010-1


  • Modbus Via RS-485

Environmental Protection

  • IP20


  • < 95% Relative Humidity

Response Time

  • < 20 milliseconds

Temperature Range

  • -20° to 60° C (-4° to 140° F)

  • 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.

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