Download - Omron C200HW-PRM21 Operation Manuals

Operation
!

4-3-8 Download

No Upload
When to download
Device Assignment
44
Min. Slave Interval The smallest allowed period of time between two slave
Watchdog Control
Time (T )
WD
Auto_clear Mode
OFF/ON
Caution
The PROFIBUS-DP configuration, defined offline, needs to be downloaded
into the C200HW-PRM21. Please note that uploading the configuration data
from the unit is not possible, since detailed information concerning slaves and
modules will not be saved in the Unit. Therefore it is advised to save your
configuration on disk before starting a download.
There are two situations in which a configuration download is allowed.
The first situation is when on startup, the Unit has detected that a corrupted
database is present in its non-volatile memory. In this case the RUN LED is
flashing and the DP-ERR LED is ON. As soon as the download is started, the
DP-ERR LED goes OFF and the READY LED will flash. When the download
is successful and a valid database is detected, the initialisation of the unit will
continue.
The second situation is after initialisation is completed. This is when the RUN
LED is ON. During the download, the READY LED will flash and the other
PROFIBUS-related LEDs will be OFF. After completion of the download, the
received database is checked. If the database is valid, the Unit is re-initialised;
and the READY LED is turned ON. If the database is invalid, the DP-ERR
LED will be ON and the user needs to re-execute the download.
Note Do not start a download in another situation than described above. The
download will most likely fail, requiring a restart of the Unit.
Before a download, make sure a serial port of the PC is connected to the
CONF port of the Unit using a cable as specified in 2-1-4, 'Configurator
Connector'.
Make sure the cursor is on the targeted Master station, then select the menu
item 'Settings – Device Assignment'. Click the 'Connect COMx' buttons to test
the connection to the Master unit. If the test succeeds, version information will
be displayed as shown.
If multiple masters are connected to various COM ports, make sure the
correct check box is selected.
poll cycles. This value is determined by the largest value
of all Minimum Slave Interval values as read from the
GSD files of the configured slaves. This ensures that all
slaves can handle the sequences of requests they
receive from this master.
If a slave's watchdog is enabled, and it does not detect
master activity for a period T
fail-safe state. T is automatically set for all configured
WD
slaves, based on the value of T
Determines if the master will change from Operate to
Clear mode if it detects that one or more configured
slaves are not in data exchange mode.
If Auto_clear mode is ON, a single slave failure will thus
reset the outputs of all active slaves.
Section 4-3
, it will set its outputs to a
WD
.
TR