Saving and Recalling Instrument State

• Overview

• Saving Data

• Recall Procedure

• Recall Procedure Using "Recall by File Name"

• Priority of Recalling Configuration File at Startup

Other topics about Data Output

Overview

You can save the instrument state of the E5072A into a file on mass storage and then recall it later to reproduce that state. You can select the stored data from the following four types.

In addition, the "user-preset" function is provided to allow you to set up the recalled instrument state when the preset function is executed.

Saving Data

Selecting content to be saved

1.  This setting takes effect both when saving the entire instrument state into a file and when saving the instrument state for each channel into memory.

2. Press Save/Recall.

3. Click Save Type.

4. Click the softkey corresponding to the content of the instrument state you want to save.

Selecting save target channel/trace

1. Press Save/Recall.

2. Click Channel/Trace and select the save target from either all channels/traces (All) or displayed channel/traces only (Disp Only).

If you specify the displayed channel/traces only (Disp Only) as the save target, you can reduce the file size. However, for channels/traces that are not displayed, you cannot recall and reproduce the instrument state separately held for each channel/trace at a later time.

Faster Recall

It is also faster to recall the DISP only,as preset is performed on displayed channels only. hence, preset is not performed on the hidden channels, and this results in a faster recall.

Saving Instrument State

Follow the procedure below to save internal data from the E5072A .

1. Press Save/Recall.

2. Click Save State.

3. Click the softkey corresponding to the destination you want to save.
    

   Softkey	Description
   State01 to  State08	Saves the instrument state into the state number.
   Autorec	Saves the instrument state as the auto recall setting. The E5072A is automatically configured with this state at the startup. This key saves the state into the "D:Autorec.sta". When Autorec.sta file is found on the D: drive at startup, the E5072A is automatically configured using the saved settings. To disable the auto recall function, delete the Autorec.sta files.
   User Pres	Saves the instrument state as user preset. The user can preset the analyzer at user saved status.
   File Dialog...	Saves the instrument state as your desired file name. You can enter a file name using the Input from the front panel button on the dialog box when storing the file.

•  If D:\Autorec.sta is found in the system at startup, the E5072A is automatically configured using the saved settings. When the external floppy disk drive is connected as A: drive, then if A:\Autorec.sta is found at startup, the E5072A is also automatically configured using the saved settings. If both files are found, A:\Autorec.sta is recalled. To disable the auto recall function, delete the Autorec.sta files.

• An asterisk (*) in the upper right of the softkey indicates that the corresponding file of the softkey already exists. If you save into the existing file, the existing file is copied as backup.sta and then overwritten.

Recall Procedure

Follow the procedure below to recall internal data from the E5072A .

1.  If you recall a file that includes traces (its content was set to State &Trace or All when it was saved), the trigger source is automatically set to Manual.

2. Press Save/Recall.

3. Click Recall State.

When you want to recall State01.sta - State08.sta, Autorec.sta

1. Press State01 - State08 or Autorec.

When you want to recall other files

1. Press File Dialog... to open the Open dialog box.

2. Select the folder and file using the external keyboard and mouse.

3. Click Open.

The following warning messages may appear when recall fails:

• The warning message listed above:
  1. May not appear in all failures
  2. Appears on the screen only when recall is done from soft key by Recall State or Recall by File Name.
  3. Displays "Recall Failed" once when the recall is done through GPIB or VBA.
  4. Is not kept in Error queue. This means that when SCPI.SYSTem.ERRor is executed, "Recall Failed" is returned.

• When a user file is used in Extending the Calibration Plane Using Network De-embedding, Determining Characteristics After Adding a Matching Circuit, or Determining the Characteristics that Result from Adding a Matching Circuit to a Differential Port and the setup status is saved, a recall error occurs if the user file is not located in the same folder as when the state was saved.

• Pressing Save/Recall > Explorer executes Windows Explorer. This helps you to browse the files in the E5072A hard disk drive.

Recall Procedure Using "Recall by File Name" Feature

You can use the recall feature with the Recall by File Name softkey for files you have named and saved in the D:\State folder. This function lets you recall a file you have named and saved by simple softkey operation, eliminating annoying operation using the Open dialog box.

• Although there is no limit to the number of files saved in a folder, only up to 50 files are displayed on the softkeys. If more than 50 files are saved in a folder, they are sorted in the order of numbers 0 to 9 and alphabetic characters A to Z and the first 50 files are displayed as softkeys.
  
  Although there is no limit to the number of characters of a file name, only up to 12 characters are displayed on the softkey. If a file name exceeds 12 characters, the first 12 characters are displayed on the softkey and the remaining characters are omitted and replaced with "...".
   

• Different files may be displayed on softkeys with the same name or a saved file is not displayed on any softkey because of the above limitations.

1. Press Save/Recall.

2. Click Recall by File Name.

3.  Files that have been named and saved in the D:\State folder are displayed on softkeys. Press the key for the file you want to recall.

Priority of Recalling Configuration File at Startup

If several instrument configuration files exist at the startup of the E5072A, only one file is recalled and set at a time in the following order of priority.

If these files do not exist, the normal preset (factory preset) is executed.