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Procedures
Selecting a Transfer Mode
Note
As a rule, use Normal Mode to transfer function block definition changes. If
too much time is required, increase the baud rate as much as possible before
the transfer. If too much time is still required and debugging efficiency is hin-
dered by continuous online editing, use Quick Mode as an exception, but be
sure you understand the restrictions given in the following note (Mode Restric-
tions in Quick Mode).
Guidelines for transfer times are given below for eight function block defini-
tions with a source code totaling 8 Kbytes for all 8 definitions and all
instances.
Normal Mode
At 115.2 kbps:
5 s
At 19.2 kbps:
10 s
Restrictions in Quick Mode
A program containing function blocks cannot be uploaded correctly to the CX-
Programmer unless the source code for all function block definitions has been
transferred to the CPU Unit. Whenever using Quick Mode to transfer changes
to function block definitions, always select Program - Transfer FB Source
later to transfer the source code as well. Even if the source code is not trans-
ferred, it will be automatically transferred when you go offline unless the com-
puter or CX-Programmer crashes before the source code can be transferred.
In that happens, it may be impossible to upload the program. (See note.)
Note It may be still be possible to transfer the source code even if the
above problem occurs.
a. The following dialog box will be displayed the next time the CX-Pro-
grammer is started.
b. Click the OK Button.
c. Go online with the CPU Unit to which a transfer was made using Quick
Mode.
d. When you go online, the CXP project automatically backed up in the
computer will be started and the following dialog box will be displayed.
e. Click the Yes Button and then following the instructions provided in the
dialog boxes. The source code automatically backed up in the comput-
er can be compared to the object code in the CPU Unit and if they
match, the source code can be transferred.
Quick Mode
1 s
2 s
Section 3-2
125
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