You can record maximum 8 data items and display them in the alarm message. The data item will be appended to the alarm message with the following format:
　　(Name: Value of the address with the specified format)
For example, the recorded item #2 will display the 32-bit floating point number stored in W10 with the format of 4 total digits and 1 fractional digit.
If the value of W10 is 123.456 when the alarm occurs, the following text will be appended to its alarm message:
(Temperature: 123.4)

To specify items, use the Specify To-be-recorded Data Items dialog. The following is an example of the dialog:

The Specify To-be-recorded Data dialog contains two parts. The left side lists the address and name of each data item. The right side shows the properties of the selected item. To select an item, click the row of the item in the list. The following table describes each property of the item.

Property

Description

Name

Specifies the name of the data item for the language specified in the Language field.

Language

Select a language so you can view and edit the name of the item for that language.

Address

The read address of the item. The address can be any valid word address.

Data Type

The data type of the item. The supported data types include: 16-Bit Unsigned Integer, 32-Bit Unsigned Integer, 16-Bit Signed Integer, 32-Bit Signed Integer, 16-Bit BCD, 32-Bit BCD, 32-Bit Floating Point.

Display Type

The display type for the value of the data item. The following table shows the available display types for each data type.

Data Type	Available Display Types
16-Bit Unsigned Integer	16-Bit Unsigned Decimal, 16-Bit Hexadecimal, 16-Bit Octal
32-Bit Unsigned Integer	32-Bit Unsigned Decimal, 32-Bit Hexadecimal, 32-Bit Octal
16-Bit Signed Integer	16-Bit Signed Decimal
32-Bit Signed Integer	32-Bit Signed Decimal
16-Bit BCD	16-Bit Unsigned Decimal
32-Bit BCD	32-Bit Unsigned Decimal
32-Bit Floating Point	32-Bit Floating Point

Total Digits

Specifies the number of digits to be displayed for the value of the item.

Fractional Digits

Specifies how to display the fractional part for the value of the item. When the Display Type is 32-bit Floating Point, this property specifies the number of fractional digits to be displayed. When the Display Type is not 32-bit Floating Point, this property specifies not only the number of fractional digits to be displayed, but also the number of least significant digits to be displayed as the fractional part. With this feature, an integer can be shown as a fixed point number.
Example:

Display Type	Total Digits	Fractional Digits	Sampled Value	Displayed Value
32-bit Floating Point	4	2	12.34	12.34
32-bit Floating Point	4	2	123.4	23.40
16-bit Signed Decimal	5	2	12345	123.45
16-bit Signed Decimal	5	2	-5	-0.05

Scaling

Check this option if you want the value of the data item to be displayed in a scaled manner. The following is the scaling formula:
DisplayedValue = SampledValue * Gain + Offset
Note: The Gain and Offset are 32-bit floating point numbers. They have, at most, 6 significant digits. Rounding and truncation errors may happen.

Gain

Available when the Scaling option is checked. Specifies the Gain used in the scaling formula.

Offset

Available when the Scaling option is checked. Specifies the Offset used in the scaling formula.