5: S
PECIAL
F
UNCTIONS
FC5A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
FC9Y-B1268
5-51
Online Edit, Run-Time Program Download, and Test Program Download
Normally, the CPU module has to be stopped before downloading a user program. Using WindLDR 5.0 or higher, the FC5A
MicroSmart CPU modules have online edit capabilities which allow to make small modifications to the user program
while monitoring the CPU module operation on the WindLDR screen either in the 1:1 or 1:N computer link system.
While monitoring on the WindLDR screen, the modified user program can be downloaded in two ways: run-time program
download and test program download.
When executing run-time program download, the modified user program is downloaded to the EEPROM in the CPU mod-
ule and replaces the original user program permanently. When download is completed, the modified program is exe-
cuted and monitored on the WindLDR screen.
The test program download replaces the user program in the RAM only and does not overwrite the EEPROM immedi-
ately. When test program download is completed, the modified program is executed while the original user program still
remains in the EEPROM. Before quitting the test program download, you are asked whether to store the modified user
program in the EEPEOM or discard the modified program.
Before performing the online edit, a user program has to be downloaded to the CPU module using the ordinary program
download. Add or delete a part of the same user program, or make small changes to the same user program, and down-
load the modified user program using the run-time program download or test program download while the CPU is run-
ning to confirm the changes online.
Another method of using this feature is: upload the user program from the CPU module to WindLDR, make changes, and
download the modified user program while the CPU is running.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]