Protected blocks are overwritten by a new protect.wld. Using a PG 3.
persons may access protected blocks but only the block header is
transferred to the PG. The block code that is to be protected remains
in the CPU and cannot be read.
Protected blocks in the RAM of the CPU may be substituted at any
time by blocks with the same name. This change remains up to next
overall reset. Protected blocks may permanently be overwritten only if
these are deleted at the protect.wld before. By transferring an empty
protect.wld from the MMC you may delete all protected blocks in the
CPU.
Due to the fact that reading of a "protected" block from the CPU moni-
tors no symbol labels it is convenient to provide the "block covers" for
the end user. For this, create a project out of all protected blocks.
Delete all networks in the blocks so that these only contain the vari-
able definitions in the according symbolism.
5.18 MMC-Cmd - Auto commands
A
command
file at a MMC is automatically executed under the fol-
lowing conditions:
n
CPU is in STOP and MMC is stuck
n
After each PowerON
The
command
file is a text file, which consists of a command
sequence to be stored as
vipa_cmd.mmc
in the root directory of the
MMC. The file has to be started by CMD_START as 1. command, fol-
lowed by the desired commands (no other text) and must be finished
by CMD_END as last command.
Text after the last command CMD_END e.g. comments is permis-
sible, because this is ignored. As soon as the command file is recog-
nized and executed each action is stored at the MMC in the log file
logfile.txt. In addition for each executed command a diagnostics entry
may be found in the diagnostics buffer.
Please regard the command sequence is to be started with
CMD_START
and ended with
CMD_END
.
Command
Description
Diagnostics entry
CMD_START
In the first line CMD_START is to be located.
0xE801
There is a diagnostic entry if CMD_START is
missing
0xE8FE
WAIT1SECOND
Waits about 1 second.
0xE803
WEBPAGE
The current web page of the CPU is stored at
the MMC as" webpage.htm".
0xE804
LOAD_PROJECT
The function "Overall reset and reload from
MMC" is executed. The wld file located after the
command is loaded else "s7prog.wld" is loaded.
0xE805
Protection behavior
Change respectively
delete protected blocks
Usage of protected
blocks
Overview
Command file
Commands
VIPA System 300S
Deployment CPU 312-5BE13
MMC-Cmd - Auto commands
HB140 | CPU-SC | 312-5BE13 | GB | 15-50
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