To run wireless TML Tests, the following components are required:
* HART Test System (HTS) with WirelessHART Test Applications and Software installed on it (KIT-193)
* 1 Access Point with USB cable to connect to the HTS
* 1 Registered RS-232 HART modem
* Wi-Analys Network Analyzer (radio equipment)
* Wi-Analys software to be installed on a 64-bit Windows PC
* DUT (WirelessHART Device Under Test)
The functional diagram of the setup is shown below:
To set up the WirelessHART Test System to run TML tests, connect one Access Point (AP) to a USB port on the HTS. Currently, only one AP is needed to run WirelessHART tests. Do not connect the second AP.
Connect a registered RS-232 HART modem between the maintenance port of your WirelessHART device and the serial port on the HTS that is designated for the HART Master. All TML tests first communicate with the WirelessHART device via FSK and perform the initial provisioning and setup before the wireless part of the test starts. Before starting any TML test, it is essential to connect one registered RS-232 HART modem between the HTS and the device and also connect one AP to a USB port of the HTS. Without both connections in place, the TML test would fail or abort immediately.
Keeping good physical separation between the 3 radio antennae (AP, DUT and Wi-Analys) involved in the TML tests is highly recommended. The proximity and orientation of the antennae can result in certain EM field interactions which could result in missed wireless packets.
Since the AP and the DUT need a wired connection to the HTS (via USB cable and FSK modem respectively), they cannot be placed very far. A good setup can be achieved by connecting the AP to the HTS via a USB cable and placing it to one side of the HTS, then connecting the DUT to the HTS via the RS-232 HART modem and placing it on the other side of the HTS. This creates > 5' (150cm) distance between the antennae on the AP and the DUT. The Wi-Analys connected to a Windows PC does not need to be anywhere close to the HTS and could be placed across the room from where the HTS is kept.
Once the setup is complete, type lstmlscr on the Linux terminal on the HTS. The list of TML tests implemented on the HTS will be displayed.
To capture the radio traffic generated by a TML test (both the test stimulus packets and the device response), configure the Wi-Analys with the following values:
Network ID : 8BCD
Join Key : 00008BCD 00000000 00000000 00000000
These values are used for the WirelessHART network used for TML tests. Press <Start> on the Wi-Analys window to start logging the wireless traffic. Wi-Analys logging must be started before the test starts.
Once the Wi-Analys has been started and the rest of the test setup is complete, type the name of the TML test you wish to run from the displayed list exactly as displayed (e.g., TML102A), then press <Enter> to start the test.
Each TML test creates several logs. For example, TML102A will create the following logs:
* tml102a_testlog.txt generated by the test automation on the HTS
* tml102a.log (raw log) generated by the Wi-Analys on the Windows PC
* tml102a.txt (decrypted log) generated by the Wi-Analys on the Windows PC
* tml102a.xml (xml log) generated by the Wi-Analys on the Windows PC
No automated Post Processor exists for wireless tests. Currently, all assessment of the TML tests is done by manually analyzing the radio traffic captured by Wi-Analys. If you have questions about TML tests, please open a Support Ticket (select Product Support, WirelessHART Test System) for assistance. Include the Serial Number or Service Tag number of your HTS in your ticket for faster resolution.
Updating the WirelessHART Test System
If your WirelessHART Test System is subscribed to the Product Service Program, you will receive updates of new releases. In the initial KIT-193 shipment, you will find a USB flash drive with the installation kit (tarball) for KIT-193 with instructions to install it on the HTS. When you receive updates via download, the installation steps to apply the update are very similar to the ones for the USB flash drive.