L-VIS User Manual
267
LOYTEC
Version 6.2
LOYTEC electronics GmbH
dynamic NVs created and then the project needs to be loaded again, so that the dynamic
NVs which were not available the first time can be used. The recommended procedure is a
combination of the above two procedures.
Follow the procedure to replace a device with static NVs to prepare the new
device with the original project. When the project is loaded from the file, a dialog
will appear and list all dynamic data points in the project, stating that they could
not be found on the device.
Finish the dialog by removing all data points listed. Since the device does not yet
contain any dynamic NVs, these data points cannot be used for the moment.
Download the modified project into the device, but
do not
save this project over
your original project. Remember that it has all dynamic NV data points stripped.
You may save the project to a different file, but this is not necessary.
Now take the device and execute the procedure for replacing a device using
dynamic NVs, that is, physically replace the device and continue with the
procedure. If an XIF file or a device template is required for the replacement, use
the same XIF which was used to initially integrate the device or use the same
device template as the device to be replaced. Since the device already has a
project loaded which matches the final static interface, it will be possible to
replace the device without changing the static interface in the database.
Commissioning the device will create all the dynamic NVs stored in the database.
The original project must now be loaded a second time, but this time the dynamic
NV data points can be assigned to the existing NVs and the project should load
without errors.
12.3 Configuration Change
This section describes the necessary procedures to change the configuration of an already
integrated device. It depends on the existing project and the kind of changes done to the
project, how the update may be performed.
NOTE:
For all configuration changes it is strongly recommended to first execute the download
procedure and then store the new project on the PC (usually overwriting the last stored
project), since this guarantees that the model number stored in the file on the PC matches
the model number which was automatically selected during the upgrade procedure and that
in cases where the upgrade must be aborted, the device may easily be restored to the last
working project, since it is still intact on the PC and not already overwritten by the new
project.
12.3.1 Same NV Configuration
This is the easiest of all configuration changes. As long as there are no changes to either the
static or dynamic NVs of the device, there are no special requirements and no special
procedures to follow. The new project may be downloaded to the device through any of the
available methods, where a TCP/IP connection is usually preferred.
The device will restart after the download and will be ready to operate without any further
steps.
12.3.2 Dynamic NV Change
If the project change includes the addition or removal of dynamic NVs
without any
changes to static NVs
, the following procedure is recommended: