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(b) Using SFC (MELSAP3) language
Before using the SFC (MELSAP3) language in GX Works2, review the
following precautions.
Description (differences between GX Developer and GX Works2) Function
GX Developer GX Works2
Change block number It is enabled by the "copy and paste"
function in block list.
Each block data is displayed in the Project
window, and the block number can be
changed in the property of each block data.
* Selecting [View] → [Open SFC Blocklist]
can display the block list equivalent to that
of GX Developer.
Auto scroll A new block diagram can be opened by
block start.
Selecting [View] → [Open Zoom/Start
Destination Block] can open it.
Open a start source block
by block start
No corresponding function Selecting [View] → [Back to Start SFC
Block] can open it.
Moving a cursor on the SFC diagram can
display zoom (operation output /transition
condition).
Selecting [View] → [Open Zoom/Start
Destination Block] can open it. Or
double-clicking while pressing the Ctrl key
also can open it.
Open operation/transition
condition programs
Multiple zooms (operation output/transition condition) can be simultaneously displayed.
* Changing the "Setting of Zoom Display" option can switch the display in a window in the
same way as GX Developer.
(c) Using labels
Before using labels in GX Works2, review the following precautions.
Description (differences between GX Developer and GX Works2) Function
GX Developer GX Works2
Check devices
automatically assigned to
labels
It is enabled by the "Show assigned
device" function of label editor.
Check on the ladder editor by selecting [View]
→ [Device Display].
Import/Export device
comments to labels
It is enabled by the "device comment
import" function and "device comment
export" functions.
Use the copy and paste on the label editor
and device comment editor.
Use pointer-type labels Local pointers are assigned. Common pointers are now assigned.
For projects with labels, 2048 points are set
by default in "Common Pointer No." in the
"PLC System" tab of PLC Parameter.
Unusable reserved words
for label name
The definition of reserved words is different between GX Developer and GX Works2.