Wireless Receiver with RS-232 Interface |
| OMWT-REC232 |
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Wireless Receiver with RS-232 Interface
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The OMWT-REC232 is a 418 MHz
radio receiver designed to receive
and decode packet data from all
OMWT Series wireless transmitters.
The OMWT-REC232 decodes the
CRC-16 encoded packets and
translates them to ASCII strings that
are sent out the RS-232 serial port
to the PC at 19200 Baud. No
hardware handshaking or command
protocol is required; all data packets
are decoded and transmitted serially
as they are received. The OMWT-REC232
is very low power; most
RS-232 ports provide enough power
to operate the receiver. External
power input is provided for host
serial ports that cannot provide the
necessary current. A simple design
approach results in a low cost
receiver that provides error checked
ASCII data for all OMWT series
wireless transmitters. The OMWT-REC232
is supported by the
OMWT-SOFT Windows software.
This makes connecting all OMWT
Series wireless transmitters to your
PC easy.
Software
The OWMT-SOFT Windows
software shows trends, minimum
and maximum values and also
indicates alarms. All data collected
may be viewed graphically in real
time or as a historical display.
ASCII data logging to a file is also
available to allow import into other
programs such as spreadsheets
and data base programs. OPC
(OMWT-SOFT-OPC) and DDE
(OMWT-SOFT-DDE) server
software is also included.
OWMT-SOFT can be used to
collect data from a wireless
network. Currently supported
sensors include:
OMWT-TEMP15 Temperature
OMWT-TEMPRH Humidity
OMWT-AIN5V Analog 5 Volt
OMWT-AIN10V Analog 10 Volt
OMWT-AIN20MA Analog 20 MA
OMWT-VIB Vibration
OMWT-MOT Motion
OWMT-SOFT is actually a DDE
client application that works in
concert with the included DDE
server application called
OWMT-SOFT-DDE.
OWMT-SOFT-DDE handles the
details of communicating or
receiving data from the wireless
sensors. OWMT-SOFT-DDE verifies
that the communication is correct,
processes the sensor samples and
then forwards the data to the DDE
client. The OWMT-SOFT Windows
software is responsible for the
presentation and analysis of the
collected data.
The OMWT-SOFT Windows
software can receive data from up
to 100 of the OMWT Series wireless
sensors, however it can only display
data from up to six sensors at a
time. If more than six sensors need
to be displayed at any given time
then the included OPC or DDE
server software can be used to
transfer data to other third party
SCADA software packages.
Specifications
Supply Voltage: 5.0 Vdc min,
12 Vdc typical, 16 Vdc max
Supply Current: 18 mA min,
20 mA typical, 25 mA max
Transmission Range:
180 m (600')
Transmission Frequency:
418 MHz
Baud Rate: 19200
Operating Temperature:
-40 to 85°C (-40 to 185°F)
Storage Temperature:
-40 to 85°C (-40 to 185°F)
Humidity: 10 to 90% RH
non-condensing
Dimensions (with antenna):
57 H x 79 W x 57 mm D
(2.25 x 3.125 x 2.25")
Weight: 85 g (3 oz)
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† All dollar amounts on this site are shown in US currency.
Note: Each unit comes with complete operator’s manual. OMWT-REC232 wireless receiver is supplied with 1.8 m (6') RS-232 cable with DB9F connection to PC and 110 Vac adaptor.
Ordering Example: (1) OMWT-REC232 Wireless receiver with RS-232 interface, $222, plus (1) OMWT-SOFT OMWT Series Windows software, $100, $222 + 100 = $322.00
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