Open... − Opening the function block diagram

You can use the Open command to open (retrieve) existing function block diagrams. You can retrieve function block diagrams from a directory, the engineering server (EAS) workspace, or the engineering server (EAS) repository. This command closes the function block diagram currently being edited with the engineering tool. Therefore, if the function block diagram has been changed since you opened it or last saved it, you will be asked if you wish to save the current function block diagram before opening a new one. The dialog is the same as for the New command. If you answer Yes to the question, the Save as dialog is displayed first. If you answer No to the question (or after saving), the following dialog is displayed:

Figure 13 Open command dialog

The purpose of the dialog information is the following:

 Server name

Name of the engineering server (EAS), when you get the function block diagram from the engineering server (EAS) workspace or repository. This information is not relevant when you get the function block diagram from a directory.

 Engineering object location

With this location the user chooses whether he wants to get the function block dia-gram from a specified Directory, specified Workspace or Repository.

 Open engineering object

Identifier of the function block diagram to be opened. You don’t have to type the file extension DXF on a filename. If you want to list the function block diagrams, you can use a wildcard (*) in an identifier.

Version saved on 2010−08−23 13:06:20 Comment text 1

Shows the date and time of the last save and the comment text of the function block diagram to be opened.

Password

Asks a password for an engineering object which has been defined in DNAexplorer as a protected one. If an engineering object is protected, a password is needed when its function block diagram is opened. The purpose of the protection is to restrict who can view and modify the content of the diagram.

 Default old character set

Information on the default character set from which the character set is converted to the engineering tool environment character set. This information is relevant only when dealt with old function block diagrams.

The default values of the engineering server (EAS), function block diagram directory and the workspace names are defined in the workspace setting information (see chapter 2 Settings for the Engineering Environment).

Open dialog

The dialog components have the following interdependences:

 When you choose one name from the engineering server list (Server name), the workspace names that are connected to the chosen server in the workspace settings are automatically updated to the workspace list (Workspace). If there is a default workspace name (Default Workspace) in the list of workspaces, it is the list default value. Otherwise, the default value workspace is the workspace name which is first in alphabetical order.

 When you start and end the Browse command by clicking the dialog OK button the chosen directory will become the Open dialog function block diagram directory.

 If you end the List command by clicking the dialog OK button, the currently chosen name will become the function block diagram identifier (Open engineering object).

 If you end the Options command by clicking the dialog OK button, the currently chosen character set becomes the default old character set.

Choosing the function block diagram (List)

The user can type the function block diagram identifier directly to the corresponding text field (Open engineering object) or use the List command (List). If he chooses the latter alternative, he can choose the identifier directly from the list of names. This command dis-plays, according to the Engineering object location, either a list of all function block dia-gram directory DXF files, or a list of the function block diadia-grams of the chosen engineering server (EAS) workspace. You can choose an identifier on the list and click the dialog OK button; the chosen identifier is updated to the Open dialog text field (Open engineering ob-ject). Cancel interrupts the choosing from the list.

NOTE!

You can choose the function block diagram identifier from the list also by double clicking its name.

NOTE!

If the location of the function block diagram is the repository and the user does not enter any search criterion to the Open engineering object field before pressing the List button, it is pos-sible that the search lasts several minutes. Therefore it is recommended to give at least a part of the function block diagram identifier and wildcards (*) as a search criterion before starting the search function.

Function block diagram versions (Version)

It is possible to open an older version of the function block diagram by clicking the Version button after using the List command. It opens the Select version dialog from which you can select the desired version to be opened in the engineering tool.

Figure 14 Version button dialog

The dialog presents the date and time of the save as well as the comment text which is used to identify the desired version. The versions appear on the list in chronological order (the latest on the top). For further information, see chapter 7.1.6 Save as... − Saving the function block diagram.

Changing the function block diagram directory (Browse)

Note that the Browse button is available only if the location of the function block diagram (Engineering object location) is directory.

The dialog Browse button starts the directory browse function. The dialog looks the follow-ing:

Figure 15 Browse button dialog

The dialog shows the drives which are currently in use (including the computer’s own dis-kette drive and mounted NFS drives). The directories of a drive can be displayed or hidden by double−clicking the drive character or by clicking the ’+’ or ’−’ character displayed on the left side of the drive character. The same applies to subdirectories as well.

The currently chosen drive and directory name shows on the top part of the Browse dialog.

When you click the OK button this directory will be updated to the Open dialog. Clicking the Cancel button closes the Browse dialog without updating the directory name seen in the Open dialog.

Changing the default character set (Options)

When you click the Options button the tool shows a list of those character sets which can be used as a default old function block diagram character set. You can then choose one of these and acquit by clicking the OK button. Cancel interrupts the changing of character set func-tion.

When you have given the information to the Open dialogs you can start the actual function performance by clicking the OK button. Cancel button will interrupt the whole function.