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5.2.4 Power Supply
Connections from a nominal 24VDC (500 mA or higher) power supply attach to the appropriate
terminals on the electronic enclosure's terminal strip.
5.2.5 Computer Interfacing via RS485 link
The distance between the sensor and a computer can be up to 1200 m (4000 ft.) via RS485 interface.
This allows ample distance from the harsh environment where the sensing system is mounted to a
control room or pulpit where the computer is located. The USB/RS485 Interface Converter allows you
to connect your Endurance 1R sensor to computers by using an USB interface.
With auto configuration the converter is able to automatically configure RS485 signals without
external switch setting. The converter is equipped with 3000 VDC of isolation and internal surge-
protection to protect the host computer and the converter against high voltage spikes, as well as
ground potential difference. When the converter is connected the computer gets one virtual COM
port.
Technical Data
Power supply
Speed
RS485
Terminal screwed
USB connector
Ambient Temperature
Storage Temperature
Dimensions (L x W x H)
Just the 2-wire (half duplex) communication is supported on the Endurance 1R 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 1R 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 1R device during
factory setup.
ENDURANCE 1R
info@Raytek-Direct.ca
Isolated power is required, and this is provided by the appropriate manufacturer
supplied power supply accessory. Beware of use of other power supplies which may
not provide the necessary isolation and could cause instrument malfunction or damage!
5 VDC direct from USB port
max. 256 kBit/s
4 wire (full duplex) and 2 wire (half duplex)
accepts 0.05 to 3 mm² (AWG 13 to AWG 30)
type B (supplied with type A to type B cable)
0 to 60°C (32 to 140°F), 10-90% relative humidity, non-condensing
-20 to 70°C (-4 to 158°F), 10-90% relative humidity, non-condensing
151 x 75 x 26 mm (5.9 x 2.9 x 1 in)
The factory fix setting for the Endurance 1R is the 2-wire Mode!
Rev. E1 Sep 2015
Installation
27
1.800.868.7495
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