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FAQ
Precautions for using the Append Value to Log feature


If you set the Append Value to Log feature, the Added Info will be appended to the operation log.
Please be aware of the followings for the use of the Append Value to Log feature:

-

Values in the Added Info column are shown as "****" in the following cases:

  Example of CSV output:
 
- When starting the display unit
- Illegal addresses or symbols has been set in word addresses (when the update trigger is enabled)
- Reading a word address has failed, for example, due to an error of communication with a device/PLC
- The trigger bit has never been turned on (when the update trigger is enabled)
- You have set [CF Card Connection] on the Transfer Tool during offline


-

Symbols such as "+" or ";" may be shown depending on the data word address, when the data type of the data value to be appended is BCD.

  For example, when the data length is 32 bits, the data value "2F0BA5ECh" is shown as follows:
  Example of CSV output:
  The data values are shown with symbols as follows when hexadecimal data from 0A to 0F are stored in word addresses, as the data type BCD is formed with data from 00 to 09:
 
  If any symbol above is shown, check if the data in BCD is correctly stored in the word address for the Append value to log feature.

-

The data value to be appended cannot be the floting-point data type.


- If you set the Update Data Value to "Trigger," the trigger bit doesn't turn off by itself. To update the data value again, turn off the bit and then turn it on.


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