Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 62)

4.5 Table Data
4.5.1 What Is Table Data?
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Programming
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4.5 Table Data
4.5.1 What Is Table Data?
Table data is data that is managed in tabular form. The data is stored separately from the registers.
Data can be copied from a table to registers or from registers to a table by executing table data manipulation instruc-
tions in the ladder program. Tables can also be used to hold data when there is not a sufficient range of registers.
4.5.2 Creating Table Data
Use the following procedure to create table data. The table definition information and column attributes that are set for
table data are listed in the following table.
You can select one of the following table types when you create table data.
• Array type: Specifies a table where all columns have the same attributes.
• Record type: Specifies a table where each column has a different attribute.
You can select one of the following table data storage locations.
• Normal: Refer to 2.1.2 Machine Controller Program Specifications for the maximum program size. The maximum size per
table is 5 MB.
• Battery backup: Refer to 2.1.2 Machine Controller Program Specifications for the maximum size of table data that can be
backed up with the battery. The maximum size per table is 3 MB.
Data
Table data
Read Queue Table Instruction
Registers
Write Queue Table Instruction
TBL1
Creating Table Data
Set the table
definition information.
Set the column attributes.
End of Creating Table Data
Table Definition
Information
Description
Table Name This is the name of the table.
Table Type Select an array-type or record-type table.
Number of Columns This is the number of columns in the table.
(10,000 columns max.)
Number of Rows This is the number of rows in the table. (10,000 rows max.)
Table Comment This is a comment for the table.
Table Data
Storage Location
Column Attribute Description
Column Name This is the name of the column.
Data Type
The data type can be integer, double-length integer, real
number, or text string.
Size This is the length of the data type.
Display Type
The display type can be binary, decimal, hexadecimal,
real number, or text string.
Column Comment This is a comment for the column.
Select normal or battery backup.
Refer to 2.1.2 Machine Controller Program Specifications
for details on the maximum size of tables and
which models have battery backup storage.
INFO