5: S
PECIAL
F
UNCTIONS
FC5A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
FC9Y-B1268
5-55
Test Program Download
Caution
The test program download may cause unexpected operation of the MicroSmart. Before starting
the test program download, make sure of safety after understanding the function correctly.
If many changes are made to a user program, the possibility of unexpected operation increases.
Keep changes to a minimum in one modification and download the user program to make sure of
safety.
If a user program syntax error or user program writing error occurs during the test program down-
load, the CPU module is stopped and all outputs are turned off, which may cause hazards depend-
ing on the application.
Before quitting the test program download, confirm or cancel the test program to select whether
to store the modified user program to the ROM or discard the changes. Before executing the con-
firming procedure, the ROM stores the original user program. If the CPU module is shut down
before confirming, the modified user program is lost.
When cancelling the test program after making changes to the user program, only the original user
program is restored and device values are not restored.
While executing the test program download, do not shut down the CPU module or disconnect the
communication cable. Otherwise, a fatal error may occur such as user program writing error, which
may cause hazards depending on the application.
When executing the test program download, output statuses are maintained. When an OUT/OUTN
instruction is deleted or an output device address has been changed, the output status is main-
tained after executing the test program download. This may cause hazards depending on the appli-
cation.
When executing the Cancel Test Program, the original user program in the ROM is restored, but
device values are maintained and are not restored.
The test program download replaces the user program in the RAM only and does not overwrite the ROM immediately.
When test program download is completed, the modified program is executed while the original user program still
remains in the ROM. Before quitting the test program download, you are asked whether to store the modified user pro-
gram to the ROM or discard the modified program.
When test program download is completed, outputs, internal relays, shift registers, timer/counter current values, and
data registers maintain the previous statuses. Timer/counter preset values are replaced by the new values.
Programming WindLDR
1.
To execute test program download, select
Online
>
Test
.
The Download Program Dialog appears.
2.
Click the
OK
button to start downloading the user pro-
gram to the RAM in the CPU module.
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