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(d) Using function blocks
Before using function blocks in GX Works2, review the following
precautions.
Function Description
Use function blocks created with
ladder
Function blocks created with ladder can be used for ladder program, ST program,
and SFC program operation outputs.
* When using function blocks created with ladder for ST programs, select [Tool] →
[Options] → [Compile] → [Basic Setting] → "Enable function block call 'from
ladder to Structured Ladder/FBD' and 'from Structured Ladder/FBD or ST to
ladder".
Use function blocks created with
structured ladder
Function blocks created with structured ladder can be used for ladder programs,
structured ladder programs and ST programs.
Use function blocks created with
ST
Function blocks created with ST can be used for ladder programs, structured
ladder programs, and ST programs.
* When using function blocks created with ST for ladder programs, select [Tool] →
[Options] → [Compile] → [Basic Setting] → "Enable function block call 'from
ladder to Structured Ladder/FBD' and 'from Structured Ladder/FBD or ST to
ladder".
When the option "Enable function
block call 'from ladder to
Structured Ladder/FBD' and
'from Structured Ladder/FBD or
ST to ladder" is set
When the VAR_IN_OUT input variable and output variable have different
label/device, the input variable value is always equal to the output variable value.
(5) Using device comments
Before using device comments in GX Works2, review the following precautions.
Description (differences between GX Developer and GX Works2) Function
GX Developer GX Works2
Delete comments of
unused devices
It is enabled by the "Delete unused
comments" function.
After checking the unused device by selecting
[Find/Replace] → [Device List], delete the
device comment directly.
Sample comment Sample comments of the special
relay/special register are provided in
project format.
Comments of the special relay/special register
and intelligent function module can be imported
by the "Import from Sample Comment" function
on the device comment editor.
(6) Using device memory
Before using the device memory in GX Works2, review the following
precautions.
Function Description
Device memory display Multiple device ranges can be displayed in a window.
* By selecting "All Range" when devices are input, all the device ranges can be displayed
in a window in the same way as that of GX Developer.
Copy and past device
memory data to Excel
To copy and paste device memory data to Excel, select [Tool] → [Read from Excel
File]/[Write to Excel File].