The PR Electronics PR-4511 MODBUS communication interface 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 PR Electronics transmitters 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 PR-4511 communication interface can be used to read the process signal, simulate the output signal, indicate sensor errors and internal device errors.
The LCD display has 4 lines featuring scrolling help text in 7 languages which guides the user effortlessly through all the configuration steps. Programming access can also be blocked by assigning a password. The password is saved in the device in order to ensure a high degree of protection against unauthorized modifications to the configuration.
Recommended transmitter: PR-4116
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