ICP DAS USA RFU-2400 User manual

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 1
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
RFU-2400
Quick Start Guide
1 What’s in the shipping package?
The package includes the following items:
2 Preparing the device
1. Wiring-connection
2. Install the (t)RFU-2400 Configuration Utility (Option)
CD: \Napdos\RF_Modem\Utility
http://ftp.icpdas.com/pub/cd/usbcd/napdos/rf_modem/utility
CD
CA-0910
ANT-124-05
RFU-2400
Quick Start
GND+Vs
D+ D-
GND RxD
TxD
Power Supply (10 ~ 30 VDC)
RS-485
RS-232

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 2
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
3 Configuring the RFU-2400
1. RF Channel：
Code
0
1
2
3
4
……
F
Frequency (MHz)
2405
2410
2415
2420
2425
……
2480
The “RF Channel” parameter specifies the actual radio frequency channel to be
used by the RFU-2400 module, and must be set to the same channel if the
module is in the same communication group as other RFU-2400 modules.
-Channel Selection:
As the 2.4 GHz ISM band is a globally available frequency range, a significant
number of devices operate within this band, which may, of course, generate a
high possibility of signal interference. Consequently, the selection of a suitable
channel is an extremely important consideration when implementing an
RFU-2400 network. The most ideal solution would be to select an RF channel
that is not occupied by other devices, as this will improve the efficiency of
wireless transmission.
-Channel Selection Method:
The best approach when attempting to identify a suitable RF channel for use by
the RFU-2400 module is to employ a WiFi Analyzer application on a smartphone
or other WiFi enabled device to scan for WLAN channels that are currently
occupied by other devices within range of the RFU-2400 module, thereby
assisting in the detection of wireless signals in the vicinity and allowing an
analysis of the WLAN to be performed.
ON
ON
0
4
8
C
2
1
3
F
E
D
6
7
5
A
B
9
Configuration Mode
Baud Rate
Data Format
App. Mode
1 2 3 4 5 6 7 8
0
4
8
C
2
1
3
F
E
D
6
7
5
A
B
9
RF Channel
Group ID

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 3
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
The chart shown below provides an overview of the wireless channels that are
appropriate for the RFU-2400/ZigBee (IEEE 802.15.4) specifications in comparison to
the WLAN (IEEE 802.11b/g) standard, and illustrates the relationship between the
WiFi and the ZigBee channels. This can be used to give an indication of the most
suitable channel that can be selected for use by the RFU-2400.

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 4
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
2. Group ID：
Code
0
1
……
F
Group No.
0x0000
0x0001
……
0x000F
The “Group ID” parameter specifies the logical group identity for RFU-2400
devices, and each RFU-2400 module must be set to the same value if it is in the
same group as other modules.
※Reminder: When attempting to differentiate between different
communication groups, the first priority is to adjust the RF Channel.
However, if too many RFU-2400 groups occupy all the RF channels, the
Group ID parameter is the second priority to be configured when creating a
new group.
3. App. Mode (Application Mode)
Value
DIP 1
DIP 2
Broadcast
0x00
□OFF
□OFF
P2P/Master
0x01
□OFF
■ON
P2P/Slave
0x02
■ON
□OFF
Reserved
0x03
■ON
■ON
Two wireless communication modes can be configured, Peer-to-Peer (P2P)
mode and Broadcast mode, as described below.
-Peer-to-Peer (P2P) Mode
In Peer-to-Peer (P2P) mode, full-duplex (TDD, time-division duplexing)
communication is supported between the two nodes, with the limitation that
only two RFU-2400 devices are allowed to be included in a single
communication group.
-Broadcast Mode
In Broadcast mode, data transmission is performed via a broadcast frame.
Broadcast mode is suitable for multi-point communication. Although there are
no limitations to the number of RFU-2400 devices that can be included in a
single communication group, only half-duplex communication supported. Since
there is the possibility that data collision can occur during wireless transmission,
a Master-Slave (Question-Response) architecture is recommended.

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 5
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
4. Data Format & Baud Rate
The specific “Data Format” and “Baud Rate”values that need to be used will
entirely depend on how the serial port has been configured.
※Note
The RS-232/RS-485 connections to each RFU-2400 device are independent, so
the Data Format settings for each connection are also independent, as
illustrated in the diagrams below.
Value
DIP 3
DIP 4
N,8,1
0x00
□OFF
□OFF
O,8,1
0x01
□OFF
■ON
E,8,1
0x02
■ON
□OFF
N,8,2
0x03
■ON
■ON
Baud Rate
Value
DIP 5
DIP 6
DIP 7
115200
0x00
□OFF
□OFF
□OFF
57600
0x01
□OFF
□OFF
■ON
38400
0x02
□OFF
■ON
□OFF
19200
0x03
□OFF
■ON
■ON
9600
0x04
■ON
□OFF
□OFF
4800
0x05
■ON
□OFF
■ON
2400
0x06
■ON
■ON
□OFF
Debug
0x07
■ON
■ON
■ON
5. Configuration Mode
Mode
Value
DIP 8
HW_Cfg
0x00
□OFF
SW_Cfg
0x01
■ON
Two configuration modes can be used, as described below.
-Hardware Configuration (HW_Cfg)
Typically, each RFU-2400 module will be configured using the device hardware,
based on the positions of both the Rotary Switch and the DIP Switches, and this
normally applies in the majority of cases.
-Software Configuration (SW_Cfg)
As mentioned above, each RFU-2400 module will generally be configured using
the device hardware. However, software configuration can be performed in
situations where advanced configuration settings are required, such as when
adjusting the RF Power.

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 6
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
4 Software Configurations
-RF Power
The “RF Power”parameter specifies the wireless transmit power value, and is
used to adjust the transmit power via the configuration utility. If the transmit
power is too low to be able to communicate with a remote device, increasing it
will improve the quality of the communication so that it becomes more stable.
Any adjustment of the RF Power should be performed in Software Configuration
mode (SW_Cfg), although the RF Power value affects the status of both the
Hardware Configuration (HW_Cfg) and the Software Configuration (SW_Cfg).
※The adjustment of this parameter is based purely on individual requirements, and ICP
DAS cannot guarantee compliance with CE/FCC certification if this parameter is
adjusted, nor is any liability assumed if the adjustment parameters are derived from
the RF Power.
Configuration Steps
Step 1. Move the INIT DIP Switch on the RFU-2400 to the ON position and then
reboot the device.
Step 2. Start the configuration utility for the RFU-2400 device and then select the
relevant COM port to establish a connection with the device.
Step 3. Click the “Read Configuration” button to display the current
configuration for the RFU-2400 device. Enter the required configuration
details and then click the “Start Configuration” button to save the new
parameters for the device.
Step 4. Once the configuration update has been completed, turn off the power
to the machine, move the INIT switch to off position, turn on the power
again to reboot the machine.
12345678

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 7
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
5 Examples
1. Broadcast / Half-duplex
Item
Switch
Controller
I/O
RF Channel
Rotary (L)
E
2475 MHz
E
2475 MHz
Group ID
Rotary (R)
0
Network = 0x0000
0
Network = 0x0000
App. Mode
DIP 1
□
Broadcast
(Half-duplex)
□
Broadcast
(Half-duplex)
DIP 2
□
□
Data Format
DIP 3
□
N,8,1
□
N,8,1
DIP 4
□
□
Baud Rate
DIP 5
□
115200 bps
□
115200 bps
DIP 6
□
□
DIP 7
□
□
Config. Mode
DIP 8
□
Hardware Config.
□
Hardware Config.
Notes
Off：□ On：■
2. P2P / Full-duplex
Item
Switch
Controller
I/O
RF Channel
Rotary (L)
E
2475 MHz
E
2475 MHz
Group ID
Rotary (R)
0
Network = 0x0000
0
Network = 0x0000
App. Mode
DIP 1
□
P2P_Master
(Full-duplex)
■
P2P_Slave
(Full-duplex)
DIP 2
■
□
Data Format
DIP 3
□
N,8,1
□
O,8,1
DIP 4
□
■
Baud Rate
DIP 5
□
57600 bps
□
57600 bps
DIP 6
□
□
DIP 7
■
■
Config. Mode
DIP 8
□
Hardware Config.
□
Hardware Config.
Notes
Off：□ On：■
RFU-2400
RFU-2400
Controller
Controller
M
S
RFU-2400
RFU-2400
RFU-2400
RFU-2400
RFU-2400
S
M
S
S
S
I-7000
M-7000
I-7000
M-7000
I-7000
M-7000
I-7000
M-7000
Controller

ICP DAS, RFU-2400 Quick Start Guide, Version 1.0 Page 8
Copyright @ 2016 by ICP DAS Co., Ltd. All Rights Reserved.
6 Communication Verification
The RFU-2400 can be used once the configuration has been completed. However, if a
failure occurs in the wireless communication, use the following procedure to analyze
the status of the communication in order to determine the source of the problem.
(1) Configure the RFU-2400 devices
Before beginning an analysis of the communication status, first set both the RFU-2400
device that is acting as the monitoring target and the device connected to the Host PC to
Debug Mode using the procedure described below.
-Move the INIT DIP Switch on both RFU-2400 devices to the OFF position
-Move DIP Switches 5, 6 and 7 on both RFU-2400 devices to the ON position and
reboot the devices.
(2) Start the configuration utility for the RFU-2400
(3) View the test results for the Received Signal Strength Indicator (RSSI) and
Success Rate. For more details regarding the “Communication Verification”,
refer to user manual of RFU-2400.
COM Port Selection
Communication Test
OFF
RFU-2400
RFU-2400
RFU-2400
RFU-2400
RFU-2400