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.
Technical characteristics
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.
Mounting / installation / 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 userdefined 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.
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