Interoperability with MDA 8

The Connect feature in MDA 8 connects to a live running instance of EHANDBOOK-NAVIGATOR.

Compatibility of EHANDBOOK-NAVIGATOR with MDA:
The following table shows the compatibility details of connecting EHANDBOOKNAVIGATOR to MDA.

EHANDBOOK-NAVIGATOR

	EHANDBOOK-NAVIGATOR
	`11.0-12.4`	`10.0-10.3`	`9.0-9.3`
`MDA 8`	`8.6`	Yes	Yes	Yes
`8.5`	Yes	Yes	Yes
`8.4`	Yes	Yes	Yes
`8.2`	No	No	No

11.0-12.4

10.0-10.3

9.0-9.3

MDA 8

8.6

Yes

8.5

Yes

8.4

Yes

8.2

The scenarios listed below are considered while connecting from MDA 8 to EHANDBOOK-NAVIGATOR:

If no instance of EHANDBOOK-NAVIGATOR is running, then the highest version of EHANDBOOK-NAVIGATOR is started. It prompts you to select the corresponding documentation file (*.ehb) for the currently loaded measurement file in MDA 8.
The loaded EHANDBOOK file name is taken from the running instance and used to preset the file selection. But, it’s possible to choose a different EHANDBOOK file before connecting.
If the multiple instances of EHANDBOOK-NAVIGATOR are running, then it connects to the highest version of EHANDBOOK-NAVIGATOR.
It is also possible to reconnect it if it was disconnected.

When an engineer loads the measurement file and connect to EHANDBOOK, he can view/inspect the results in both the EHANDBOOK and MDA 8 Products. The advantages are listed below:

In MDA 8:

shows the change of signal values over time in the oscilloscope
easy zoom-in or zoom-out the oscilloscope
easy moving forth and back in time
two cursors are now available for offline measurement. Associated measurement values are prefixed with A or B to show to which cursor they belong.
When EHANDBOOK is connected, it is possible to request to show the documentation of a signal in MDA 8. The signal name is searched in the currently loaded EHANDBOOK files.

In EHANDBOOK-NAVIGATOR:

shows values for a single point in time
shows the interdependency of signals in interactive models (how the values are created)

Use case for the Engineer

The signals were recorded during a test drive (e.g. with INCA) and the recorded values are now to be checked for correct/expected signal values over time. The engineer loads the recording (e.g. a measurement file of *.mf4 format) into MDA 8 and adds some signals to an oscilloscope for inspection. If some values do not have the expected value pattern or exceed certain limits, then engineer wants to check with the documentation for the cause. So he connects with EHANDBOOK and selects the corresponding documentation file (*.ehb) for the currently loaded measurement file. Automatically the corresponding document in the EHANDBOOK is looked up.

Loading Documentation from MDA 8

This describes how to visualize the signal values over time in MDA 8 and look up the related data in the corresponding documentation in EHANDBOOK.

Launch MDA 8 Product and load the measurement file in it.
Add the signals from the file to an oscilloscope.

Click button in the toolbar.
Connect to EHANDBOOK-NAVIGATOR dialog box is loaded with the selected documentation file (*.ehb) and measurement (*.mf4) file. If it is not selected, click Browse to select the *.ehb which needs to be selected first time. But in future, all the further connect actions will remember the previously selected documentation file.

Click Connect to connect it. The Connect button is enabled only when the measurement file is loaded.
Measurement and Calibration Files dialog box is displayed in EHANDBOOK for confirmation.

Click Load.
The corresponding documentation is loaded in the EHANDBOOK.

Loading the Measurement Data Manually

A calibration engineer navigates to the right topic and opens the interactive model containing the signals under investigation. There, values can be added to the model in which he/she is interested to investigate. Now in MDA 8, you can add the two cursors (Cursor A and Cursor B) for offline measurement. The associated measurements values are prefixed with "A:" and "B" to show to which cursor they belong to.

Click Add Cursors to add the new cursors to the oscilloscope to mark the points in time.

Here is a side-by-side view of both the products. Right side view is the EHANDBOOK which shows the documentation where left side view is the MDA 8 which shows the value over time.

Right click on any of the cursors to send the exact point in time to the EHANDBOOK.
A context menu is displayed.

Click Send Time to EHANDBOOK-NAVIGATOR.
The values are sent to EHANDBOOK. This time value is taken over and is used to display the values for all marked label names. It displays the "Time range", "Cursor A", "Cursor B", and then "Step by" values. The time value is given in seconds. When you send a point in time of a MDA 8 cursor to the connected EHANDBOOK-NAVIGATOR, the value is automatically assigned to Cursor A.

When you connect EHANDBOOK, it is possible to request to open the documentation of a signal in the currently loaded documentation in MDA 8.
Right-click on a signal and click Open Signal Documentation in the context menu to display the signal documentation.
When you click on this feature, it searches in all loaded EHANDBOOK files for that particular signal and displays all the occurrences in the "Search Results" view in EHANDBOOK. Now, you can find and double-click on it to open from the "Search Results" view. This helps to focus on the value and the documentation simultaneously.

Replacing Measurement File

Replace measurement file feature in the MDA 8 helps to replace a measurement file (*.dat/*.mf3/*.mf4 file) in the MDA 8 and the replaced file will also be updated in the EHANDBOOK-NAVIGATOR also.

User scenario:
The example below describes the user scenario how this feature useful for a calibration engineer.
For example, the calibration engineer starts the measurement with the recordings and connects to EHANDBOOK-NAVIGATOR. Then, the engineer wants to check the recordings on the next day. He replaces the measurement file with the latest recordings by using Replace measurement file feature in the MDA 8. The new measurement file is updated on the EHANDBOOK-NAVIGATOR also without asking the confirmation.
When a new measurement file is replaced in the MDA 8, the following changes are also performed in the EHANDBOOK-NAVIGATOR.

All label values are removed
Both the cursors are cleared
The new time range is calculated

The engineer has to click on Display all values to add the values back to the interactive models.

To replace a measurement file:

Load the measurement file in MDA 8 and click button in the toolbar to connect to EHANDBOOK-NAVIGATOR.
Connect to EHANDBOOK-NAVIGATOR dialog box is loaded with the selected documentation file (*.ehb) and measurement file (*.dat/*.mf3/*.mf4 file).
Click Connect to connect it.
EHANDBOOK-NAVIGATOR is connected with the loaded measurement file for the selected project with all the values.

Go to File Explorer in the MDA 8, select the measurement file (*.dat/*.mf3/*.mf4 file).

Now, click icon to Replace the measurement file.
Windows Explorer is displayed to select the new file for replacement.
Select the new measurement file and click Open.
The file is replaced in MDA 8 and the same is updated in the EHANDBOOKNAVIGATOR also.

The changes reflected in the EHANDBOOK-NAVIGATOR after the replacement of the new measurement file are:

In the Measurement and Calibration Files dialog box and can be seen when you open it from the Data menu.

All label values are removed and both the cursors (Cursor A & Cursor B) are cleared.

The new time range is calculated.

Terminating an instance of EHANDBOOK

The mda8_disconnect button will disconnect the connection between MDA 8 and EHANDBOOK without terminating the running instance of EHANDBOOK. Exiting MDA 8 or EHANDBOOK product will disconnect implicitly.