25.11.3.2 Mode / Constant Cycle

Sample data at constant cycles starting from when the display unit is turned ON.

Execution Condition

Select the sampling action execution condition. Select [Constant Cycle].

Sampling Frequency

Frequency

Select the sampling frequency from [Constant] or [Address].

When you select [Address], you can change sampling frequency at run time.

Sampling Frequency

When [Frequency]=[Constant], specify the sampling frequency at [1sec] (one second) or [100ms] (one hundred milliseconds).

Set 1 to 65535 when the unit is 1 sec and 1 to 9 when the unit is 100 ms.

  • Even when 100 milliseconds is set, the first sample will begin at 1 second.

When [Frequency]=[Address], specify the sampling frequency with a word address.

  • You can only set up an internal device address.

  • Values are read using the decimal (unsigned) format.

  • If you store a value outside the range supported by the address, operates as follows.

    [1 sec] / [100 ms]

    Value

    Action

    [1 sec]

    0

    Sampling does not occur.

    Greater than or equal to 65536

    Sampling occurs every 65535 seconds.

    [100 ms]

    0

    Sampling does not occur.

    Greater than or equal to 10

    Sampling occurs every 900 milliseconds.

  • The value in the specified address is cleared (0) on the following timing. To avoid clearing to 0, please use the internal device's backup feature.
    5.4.4.3 Display Unit [Mode] - Backup Internal Device

  • When the display unit is turned OFF or reset

  • On Transfer Project (Automatic transfer)

  • Going from OFFLINE mode to RUN mode

  • The defined address is monitored every 50 milliseconds. Checks for changes in value in the specified address before changing the sampling frequency. As a result, there may be a delay in changing the sampling frequency.

Occurrences

Select the number of times sampling will occur. The setting range is from 1 to 65535.

Data Full Bit Address

Select whether to verify the designated number of sampling cycles has completed. If the sampling is one cycle, the specified bit address is turned ON.

The sampling will continue running even when this bit address is ON.

Extended

Displays the [Extended] dialog box.

Overwrite old data after finishing the specified cycles

Data will be overwritten and stored, starting with the oldest data, after data has been sampled the designated number of times. This setting is fixed to enable.

Add Time Data

Select whether or not to store the sample time along with the sampled data. If this is not designated, when displaying/saving in CSV or printing, the date/time columns will be blank.

Retain Sampling Data (SRAM)

Select whether or not to save the sampling data to the backup memory (SRAM). If the sampling data is not saved, the data will be deleted when the power to the display unit is turned OFF or reset.

Back Up Sampling Data

Select whether or not to backup sampling data backup memory (SRAM) automatically in external storage every time the designated number of sampling cycles is completed. The data is saved in binary files.
Data backed up in the external storage will be used when displaying historical data in a historical trend graph. If data is not backed up in external storage, historical data will be displayed only for the number of occurences saved in the backup memory (SRAM).

25.14.1 Usage Capacity of Sampled Data

Save in

Select the "Save in" location for backup data from [CF card], [SD Card] and [USB storage].

Folders are automatically created for each sampling group in the "Save in" location. The saved file name will be Time Stamp (year/month/day/hour/minute/second when saved).

For example, when it is saved at 14:30:05 on July 2, 2007

\SAMP**\T070702_143005#.bin
("**" represents sampling group number and "#" represents index number)

Backup Count

Specify the number of times (1 to 500) to write the backup data.

When Exceeding Backup Count

Select an action when the number of backup files exceeds the value set in the Backup Count.

Delete the oldest file and add a new file.

Stops backup. "9" (number of files exceeded) is stored in the status address.

Status Address

Indicates whether the saved operation status and error information are stored in the specified address.

The error status indicates the following error codes.

Error Code

Bit 12 to 15

Description

Details

0

Completed Successfully

Transfer completed successfully.

1...3

Reserved

--

4

No external storage

There is no external storage device inserted into the display unit.

The CF Card cover is open.

The USB storage is not formatted properly or is damaged.

5

Write Error

The external storage does not have enough free space or the storage was disconnected during write operation.

10 backup data files with the same time stamp already exist because the time setting of the display unit was restored, etc.

The SD Card is write-protected.

The index file is read-only. (SP5000 series or GP4000 series)

6

Reserved

--

7

CF Card Error

The CF Card is not formatted properly or is damaged.

8

Reserved

--

9

Excess Number of Files

Exceeded number of files set