Protocol

Network Protocols

UDP

The CLW3000 supported UDP over IP, whereas the CANlink® wireless 4000 does not support this unreliable transport protocol.
The application can be easily modified to use TCP over IP.

The CANopen Object Dictionary objects 0x3010:0x16 and 0x3008:0x09 determine the network protocol in use.
The three options are:

• Wi-Fi (TCP)

• Bluetooth (SPP)

• BLE

For information about setting the wireless interface, see Interface Configuration.

Bluetooth PAN connection

A Bluetooth Personal Area Network (PAN) is an ad-hoc wireless connection that allows the devices to communicate directly with each other.
The devices are tethered together over a Bluetooth Classic connection.

The CANlink® wireless 4000 does not support this legacy connection technology.

BLE is the recommended method of ad-hoc connections for low bandwidth applications (see BLE).
See Bluetooth, or Wi-Fi for higher bandwidth requirements.

Simultaneous interface protocols

In the CANlink® wireless 4000, only one protocol may be enabled at one time.

See Interface Configuration.

Single Wi-Fi band

In the CANlink® wireless 4000, it is recommended to only enable one Wi-Fi band at a time.
This only applies to the Client, as the Server determines the band.

If the Server is on channels 1 through 11, then that is the 2.4GHz band.
If the Server is on channels 36 through 48, then that is the 5GHz band.

To correctly configure a Wi-Fi Client device band, please observe the following table "Client Wi-Fi band".

Band	Settings
2.4GHz	Set 0x3000:0x10 [Enable 2.4GHz WiFi Band / Infrastructure only] to 1 Set 0x3000:0x11 [Enable 5GHz WiFi Band / Infrastructure only] to 0
5GHz	Set 0x3000:0x10 [Enable 2.4GHz WiFi Band / Infrastructure only] to 0 Set 0x3000:0x11 [Enable 5GHz WiFi Band / Infrastructure only] to 1