ProSoft Technology PTQ-PDPMV1 - Manual (Page 41)

PTQ-PDPMV1 ♦ Quantum Platform Configuring the Module
PROFIBUS DP Master Network Interface Module for Quantum User Manual
ProSoft Technology, Inc. Page 41 of 306
August 12, 2014
When the download is completed, the PROFIBUS Master Configuration window
will initialize the Master to operate as a Class 2 Master only. In this mode it is
possible to initialize the Master even if the database does not contain any slaves.
After successful initialization, the PROFIBUS Master Configuration window will
issue the following mailboxes in order to gather information about the connected
slaves:
1 1. Send FB_APPL_GET_LIVE_LIST in order to detect connected slaves,
2 2. Send FB_APPL_GET_SLAVE_DIAG (external request) to all devices
identified as slaves according to the Live list.
3 3. Send FB_APPL_GET_SLAVE_CONFIG to all devices identified as slaves
according to the Live list.
When the information is collected the PROFIBUS Master Configuration window
will find a matching GSD-file and extract information from it. Refer to the
flowchart below for this sequence:
GSD Selection Algorithm
If two or more matching GSD-files are found, the first one found should be
selected. The other compatible files should be stored so that the user can select
one of them instead. If the user selects another GSD-file, the PROFIBUS Master
Configuration window will run through the Module Selection Algorithm (described
below) again.