Communication; Saving/Reading The Device Data - Siemens SIMATIC PCS 7 Operating Manual

Functions

7.4 Communication

Settings for "Load FF segment"
You can make settings in the object properties of the FF link in HW Config that are taken into
consideration during an AS download.
Perform the following steps:
1. Open the hardware configuration in SIMATIC Manager.
2. Open the object properties of the FF Link.
3. Select the "Load FF Segment" tab.
4. Make the settings in accordance with the following table:
7.4 Communication
7.4.1

Saving/reading the device data

The "Download to device (Page 163)" and "Upload to PG/PC (Page 165)" functions are used
to update the data storage system.
● The "Upload to PG/PC" function is used to load all device tags of a device object from the
● The "Download to device" function is used to load all configurable device tags of a device
114
Check box Application
Only load FF Link Exclude FF segment during
and FF devices AS loading
when modified
Example: You configure no
changes for the FF segment.
Always load FF Link Complete download of an FF
and FF devices segment
Exclude FF Link and Function for commissioning
FF devices from only
loading
device to the offline data storage.
object from the offline data storage to the device.
Effect
If only changes are downloaded, the FF
segment continues running during loading.
The FF segment is stopped when it is
downloaded completely.
Recommendation
After a complete download of an FF segment,
select the option "Only load FF Link and FF
devices when modified".
This function supports you during
commissioning of other FF links on the same
PROFIBUS.
NOTICE!
STOP of the FF segment possible
Undefined states may occur in the FF segment
when you use this setting.
Help for SIMATIC PDM (V8.2)
Operating Manual, 02/2014, A5E33203676-AA