NOVUS AUTOMATION
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6
CONFIGURATION / OPERATION
DigiConfig
is a Windows software used for configuring
RHT-Air
. To install
it, please run the file “
DigiConfigSetup.exe
”, available in our website
DigiConfig
comes with an unabridged help tutorial, containing all the
necessary information for you to use it. If you want to use help tutorial, start
the application, and select the
Help
menu or press F1.
Check our website for get the
DigiConfig
installer and the additional manual
guides.
Users will receive the fully calibrated adjustment-free device. The original
configuration is shown below:
Addr
(Communication address) = 246
Time
(Update interval) = 60 s
To configure it for the first time, it is necessary to remove the front cover and
connect it to a computer through a mini-B USB cable. The initial configurations
for wireless are described as follows:
PAN ID (Network Identifier) = 22350 (0x574E)
RF Power (Power Level) = 0 dBm
6.1
RHT-Air SCREENS
Indication screen of the values measured in the device:
1ª Screen:
Main
To configure the communication parameters, you should press the button
(for about 5 seconds) until it starts to blink. Release it and press it
again to expand it. When the expected value appears, release the button,
and wait until the screen stops blinking (for about 10 seconds). If you want to
move on to the following screens, press the button
.
Modbus Address
configuration screen: Sets the address of the module on
the Modbus network. Values between 1 and 246.
2ª Screen:
Modbus Address
Time
configuration screen: Sets the update interval in seconds.
3ª Screen:
Update interval
Mode
configuration screen: Sets the indication mode.
4ª Screen:
Indication mode
CODE
DESCRIPTION
0
Indicates temperature and relative humidity.
1
Indicates temperature and dew point.
2
Indicates relative humidity and dew point.
3
Indicates only temperature.
Unit
configuration screen: Sets which temperature unit should be used (°C
or °F).
5ª Screen:
Unit
Display screens only for measured values on the device:
6ª Screen:
Temperature
7ª Screen:
Relative humidity
8ª Screen:
Dew point
7
WIRELESS COMMUNICATION
RHT-Air
has an IEEE 802.15.4 wireless communication to connect to
AirGates-Modbus
that has its firmware updated to a version more recent
than V1.23. The first
RHT-Air
configuration must be performed via the USB
interface through the
DigiConfig
software. In it, the necessary parameters
for communication with
AirGates
network should be set. After the first time it
is configured and matched with a
AirGate-Modbus
,
RHT-Air
will operate as
a Modbus RTU slave. From this moment on, all its resources can be
accessed by reading its registers anywhere in any Modbus RTU network.
Some settings can be made via the programming button
.
In this section you will find the necessary information to carry out the data
readings without the use of the
DigiConfig
software. To ensure the correct
device configuration, use the
DigiConfig
software. Once configured, the
data of its inputs can be accessed by any other software with Modbus RTU
communication capability.
7.1 MODBUS COMMANDS
The following Modbus RTU commands (functions) are implemented. For
further information on each one of these functions and on the Modbus
protocol in general, go to
READ HOLDING REGISTERS – 0x03
This function can be used to read a value of one or up to 42 retentive
registers, as per the
Retentive Registers Table
.
WRITE HOLDING REGISTERS – 0x06
This function can be used to write in a retentive register, as per the
Retentive Registers Table
.
7.2 DESCRIPTION OF SOME REGISTERS
Once
RHT-Air
meets an
AirGate-Modbus
and is matched, this
AirGate
will be
last published by
RHT-Air
. Therefore, when the Master of the Modbus network
requires that the
RH-Air
address be read, the response is sent immediately
and the expiration of this publication can be checked through register 30, which
shows how long it has been since the last publication.
REGISTER 6 – PAN ID
Common identifier for each IEEE 802.15.4 wireless network. All devices on
the same network (
AirGates-Modbus
and
RHTs-Air
) must be configured
with the same
PAN ID
.
REGISTER 7 – ENCRYPTION
This register should be used to enable or disable the use of encryption. If it
is enabled, the encryption key should be the same used for all device
configured with the same
PAN ID
.
