Additional Information
The global variable comments are linked to the device variable comments in the I/O mappings
and the I/O terminal comments on the Parameters Tab Page for the Safety Slave Unit.
Registering Local Variables
Registration of local variables refers to the registration of variables that can be used only inside POUs
(programs and function blocks). Local variables include internal variables, input variables, output vari-
ables, and external variables.
l
Registering and Editing Local Variables
1 Double-click a program under Programming - POUs - Programs in the Multiview Explorer. Or
,
right-click the program and select Edit from the menu.
The local variable table for the program or the local variable table for the function block is dis-
played in the Edit Pane.
• The local variable table for programs is shown below.
• The local variable table for function blocks is shown below.
Field Description Restrictions
Name Enter a name to use to identify the variable. Only single-byte alphanu-
meric characters are al-
lowed.
Multi-byte characters,
such as those used for
Japanese, are not al-
lowed.
The maximum size is 127
bytes.
Data Type Set the type of data that is stored in the variable. Refer to
6-2-5 Data Type
on page 6 - 14 for the data types that you
can use.
---
Initial Val-
ue
Set the value to use when the power is turned ON, when the
mode changes to RUN mode, or DEBUG mode (STOPPED).
This parameter must be specified.
---
6 Programming
6 - 40
NX-series Safety Control Unit User's Manual (Z930)
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