Endurance® Series
Users Manual
24
Just the 2-wire (half duplex) communication is supported on the Endurance sensor side. The
disadvantage is that the data transfer is just alternating possible in one direction at a time. The
maximum communication baud rate between the Endurance device and the USB/RS485
converter is 115.200 kBaud. A Baud rate of 38.4 kBaud is the default (preset) value in the
Endurance series device during factory setup.
Figure 14: USB/RS485 Converter
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, whereas all A-signals, as well all B-signals have to be connected to common
lines. The common A-signals have to be routed to the TX+ and the common B-signals to TX-
terminal at the selected USB/RS485 converter.
5.3.6. 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 the supplied Multidrop Software, an own written communication
software or an individual terminal program to access the Endurance sensor for issuing
commands and receive the responses.
To Next Page
Loading...
