26.31.1 Restrictions on Transferring CSV Data

When using external storage, check the restrictions identified in the following.
5.6.3 Restrictions on External Storage Usage
The maximum number of data that can be set in one file (ZR*****.csv) is 10,000 (or 5,000 when the data is 32 bit).
If the number of data is large, transfer may take some time. The time from when transfer starts to when transfer is complete can vary from several seconds to several minutes.
While a transfer is occurring, the display of Parts may not update properly or may become slow. Screen changes and other operations may also become slow.
If a screen change occurs during transfer, in order to read the screen information, the transfer may take some time.
Wait until a transfer completes before initiating another one. If a transfer is started before the previous one ends, such as when an automatic transfer and manual transfer occur at the same time, the second transfer operation may not be accepted.
If a project transfer or changing to offline mode is performed while transferring data, the data may not be transferred completely.
If multiple files are stored in the external storage [file] folder, transferring to the device from external storage may take up to several minutes.
If an external storage error occurs, any file that has not finished writing may remain on the external storage.
When overwriting, the required available space on the external storage is approximately double the size of the actual data. If there is more data than available space, a write error occurs during transfer.
To free up space, you can move out data that is not immediately needed between the external storage.
42.8 Copying or Moving Data Between a CF Card (or SD Card) and a USB Storage Device
When transferring data from a device/PLC to external storage, a [file] folder is created if it does not already exist. If the external storage is not reset or a folder cannot be created, an external storage error occurs.
When you save the existing CSV data in the external storage, if data is entered in the third row or later in the CSV data, it will be deleted upon saving.
When using Float, up to 17 digits or 16 decimal places can be read, but an error may occur after the seventh digit due to floating point limitations.
When transferring from the external storage to the device/PLC, tabs and single-byte space characters are skipped when read. Furthermore, when there are periods or commas in comments, there are instances when the data text cannot be read properly. When there are two or more commas in a single row, data after the second comma is not read.

Restrictions for Manual Transfer

First set the Condition on [Recipe] - [Transfer CSV Data (Condition)], then place the Special Data Display [Data Transmission] on the screen.
Only one Special Data Display [Data Transmission] can be placed per screen.
Up to 32 Special Data Display [Data Transmission] can be placed per project.
When selecting transfer files by touch, multiple files can only be selected from the area displayed in a Special Data Display [Data Transmission]. (The maximum number of display rows is 50.) If the displayed page is changed with the [Data Transmission] scroll switch, the selection will be cancelled.
If an error occurs while transferring multiple files, transfer stops at that file. Subsequent files are not transferred.
When transferring data from the device/PLC to the external storage, the data is saved in the file set in the Special Data Display [Data Transmission]. The Condition Name (Group Name) is overwritten by the Condition Name set in the Common Settings - Condition area.
If the number of data designated in the condition settings differs from that in the file, the smaller number of data are transferred.
Ensure that the file numbers set in the condition settings ([Start] to [End]) are not repeated in multiple conditions. If file numbers are repeated in several conditions, data are transferred according to the condition with the smaller number.

Restrictions on Automatic Transfer (Conditional Action)

A maximum of 64 files can be transferred at one time.
If an error occurs while transferring multiple files, transfer stops at that file. Subsequent files are not transferred. Transfer occurs in order starting from the top file number storage address.
If the number of data designated in the condition settings differs from that in the file, the smaller number of data are transferred.
Ensure that the file numbers set in the condition settings ([Start] to [End]) are not repeated in multiple conditions. If file numbers are repeated in several conditions, data are transferred according to the condition with the smaller number.
If the number of files is not set, data are transferred even when the [Control Word Address] turns ON. Also, status will not restart.
When using the Condition Name Search feature, only Text Data Mode 1, 2, 4, and 5 are supported.

Restrictions on Automatic Transfer (Address Action)

Only one CSV Data file can be transferred at a time.
When transferring CSV Data from external storage to a device/PLC using a memory link connection, set [Address Mode] to "0".
If the number of data exceeds the set range (10,000 when the data length is 16 bit, 5,000 when it's 32 bit), any excess values are not transferred.
Ensure that the device code/address code is set correctly. If the device address is out of range or refers to a non-existent device, a communication error occurs and no transfer is performed.