Addressing The Endurance Sensor In A Rs485 Multidrop Network - Fluke Endurance 1RL Operating Instructions Manual

Installation
Multiple Endurance sensors in a RS485 Multidrop Network
Wiring
For an installation of two or more Endurance sensors in a RS485 network (2-wire, half duplex), each
Endurance sensor needs it's specific RS485 network address (1 - 32), preset via the Endurance control
panel (user interface) or alternatively via a standard terminal program (operating system dependent).
Once all the units are addressed, wire up the units in the 2-wire multidrop manner, keeping all A & B
signals to be common and connect these to the both signal lines of the selected USB/RS485 converter.

5.2.6 Addressing the Endurance sensor in a RS485 Multidrop Network

If you are installing two or more sensors in a multi-drop configuration, please be aware of the
following:
• Each sensor must have a unique address greater zero (1 - 32).
• Each sensor must be set to the same baud rate (default is 38.4 kBaud).
• Once all the units are addressed, wire up the units in the 2-wire multidrop manner, keeping all
A & B to be common.
• Now you can run own written communication software to access the Endurance sensor or use
an individual terminal program to issue commands and receive the response from the sensor.
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Figure 18: USB/RS485 Converter
Rev. E1 Sep 2015
ENDURANCE 1R
1.800.868.7495