Pepperl+Fuchs HD2-DM-A Manual page 197

Advanced Diagnostics
Appendix
If at least one PROFIBUS device is in data exchange, the measurement takes place only for
PROFIBUS masters and devices that are in data exchange. All other devices are disabled for
the measurement.
To analyze PROFIBUS devices that are not in data exchange, you can use the oscilloscope
function. See chapter 5.12
If multiple segments are linked together via a repeater like in a PROFIBUS PA Segment Cou-
pler SK2, application monitoring takes place for all field devices connected to the same logical
segment. To prevent the analysis of field devices not connected to the same physical segment
as the ADM, you can add all devices of the segment to the configured field devices list and acti-
vate "Address Filter Active". If the filter is activated, only field devices in the configured list are
monitored. All other field devices are ignored.
Figure 8.5
8.10 Online and Offline Data Sets
Each DTM provides 2 different types of user interfaces:
• Online data set
• Offline data set
An online interface shows the current values stored in the device. An offline interface shows the
values currently stored in the dataset of the DTM inside the FDT project.
If an ADM is replaced with a new ADM, this online data will be lost. In order to prevent such
data loss, the data from the online data set can be uploaded to the offline data set and down-
loaded to the device again later.
Diagnostic Manager
Online
Data Set
Diagnostic Device
Figure 8.6
8.11 HD2-GT-2AD.FF.IO Web Server
The diagnostic gateway features a built-in web server. You can access this web server by enter-
ing the IP address or DNS name of the diagnostic gateway into a web browser. The web server
provides the following features:
196
PROFIBUS address filter active checkbox
Offline
Data Set
Online
Data Set
Online and Offline Data Set