User`s guide

Universal Library User's Guide Temperature Input Boards - WLS Series
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Hardware considerations
Wireless operation
You can operate the WLS-TEMP and WLS-TC as remote devices that communicate with the computer
through a USB-to-wireless interface device, such as the WLS-IFC. The interface device can communicate
with multiple remote WLS-Series devices over a wireless link.
Network parameters (wireless operation)
Use InstaCal to configure the network parameters required for wireless communication. Configuration options
are stored in non-volatile memory in EEPROM, and are loaded on power up.
Network parameters can only be modified when the device is connected locally to the computer through the
USB port. After configuring the network settings for a remote device, unplug from the computer and move the
device to its remote location.
The following network parameters are programmable with InstaCal:
 Identifier: Text that identifies the WLS Series device. This value is optional, and is not set by default.
You can enter up to 20 alpha-numeric characters.
You can set the text identifier value using the ConfigItem option BINODEID with cbSetConfigString()
or SetDeviceId() while the device is connected locally to the computer through the USB port, or when
the device is operating remotely.
 PAN (hex): The personal area network ID assigned to the device. This value is set to 1000 hex by default
(4096 decimal).
Most users do not need to change this value. However, you may want to change the PAN value in the
following situations:
- You have multiple WLS Series devices and do not want to allow communication between all of them.
Set the PAN ID to the same value on each device that you want to communicate.
- If other WLS Series devices are operating in the vicinity, you can avoid accidental changes to your
device settings by changing the default PAN value.
To change the PAN ID, enter a 16-bit hexadecimal value between 0 and FFFE. (Hexadecimal values
consist of numbers between 0 and 9 and letters between A and F. In this case, up to four characters could
be entered.)
You can set the PAN value using the ConfigItem option BIPANID with cbSetConfig() when the device
is connected locally to the computer through the USB port.
 CH: The IEEE 802.15.4 radio frequency (RF) channel number assigned to the device. This is the channel
number used to transmit and receive data over the wireless link.
The table below lists each channel available along with its corresponding transmission frequency.
RF
Channel
Transmission
Frequency (GHz)
RF
Channel
Transmission
Frequency (GHz)
12
2.410
18
2.440
13
2.415
19
2.445
14
2.420
20
2.450
15
2.425
21
2.455
16
2.430
22
2.460
17
2.435
23
2.465
The channel number is set to 16 by default. Select a different channel number if another group of WLS
Series devices is already transmitting on that channel, or if the signal is spotty or intermittent, indicating
noise on the channel. If you change the channel for one device, remember to also change the channel
number on all other devices with which you want to communicate.