is Pro DP/PA Link DTM
Configuration in Online Mode
ifak system GmbH
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Configuration in Online Mode
The FDT specification defines the function
ScanRequest(
) for
CommDTMs. This function makes it possible to receive a list of
devices that are connected to the bus (also called "live list").
The
is Pro DP/PA Link DTM
implements this function according
to the FDT specification. It is necessary that the applied FDT
Container supports this function. You can use the ActiveX
"Device List" (see section below), too.
The specification allows a ScanRequest only for the DTM states
ONLINE
,
COMMUNICATIONSET
and
GOINGONLINE
. The Gate-
way DTM follows the specification and allows only querying for
devices on the bus when the Gateway DTM is connected.
The list of devices found is transmitted to the frame application
with the help of an XML document und should be displayed to
the user.
Device List
This ActiveX lists all devices found during a Profibus scan. The
list shows the address of the device, its Profibus identification
number (Ident), and whether the device is currently in use by a
connection of a DeviceDTM. A scan triggered by the frame
application or pressing the button "Update List" will update the
list with the devices found on the Profibus segment.
