WLS-IFC User's Guide
Installing the WLS-IFC
10
If the Power LED turns off
If the Power LED is lit but then turns off, the computer has lost communication with the WLS-IFC. Disconnect
the USB cable from the computer and then reconnect it. This should restore communication, and the Power
LED should remain
on
after the device is configured.
Configuring the network parameters
The following network parameter options are programmable with
Insta
Cal.
Identifier
: Text that identifies the device (optional).
PAN (hex)
: The personal area network (PAN) ID assigned to the device.
The PAN value is a number used to identify the remote device with which you want to communicate. The
WLS-IFC can only communicate with a device whose PAN is set to the same value.
Most users do not need to change the default value assigned to the device. However, you may want to
assign a different PAN ID in the following situations:
o
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.
o
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.
CH
: The radio frequency (RF) channel number assigned to the device.
The channel number is used to transmit and receive data over the wireless link. You may want to change
the channel number in
Insta
Cal when another WLS Series device is already transmitting on that channel, or
when noise is present on the channel.
The table below lists each available channel and 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
AES Key
: Value used to encrypt data (optional).
AES encryption is disabled by default. Unless you suspect that there are other users of WLS Series devices
in the area, there should be no need to enable encryption. However, if you suspect that there are other WLS
Series devices in the area, and you need to secure the devices from being accessed by other users, enable
AES encryption.
Enabling encryption does NOT secure the device from access through a local USB connection. A remote
device configured for encryption can be connected locally through the USB port to access other remote
WLS Series devices with the same settings; you may need to physically secure the remote devices to
prevent tampering of the of device's network.
Set the PAN ID, RF channel, and AES key to the same value for each device that you want to
communicate
Only devices with matching parameter settings for PAN, CH, and AES Key (if set) can communicate with each
other.
For information on setting up the network parameters for your WLS-IFC, refer to the "WLS Series"
section of
the "Temperature Input Boards" chapter in the
Universal Library User's Guide
.
You only have to set up the network parameters once. The WLS-IFC retains the parameter settings even if you
connect to a different computer.
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