ProSoft Technology PTQ-PDPMV1 - Manual (Page 215)

PTQ-PDPMV1 ♦ Quantum Platform Hot Standby Support
PROFIBUS DP Master Network Interface Module for Quantum User Manual
ProSoft Technology, Inc. Page 215 of 306
August 12, 2014
PCB Master Configuration Software
The configuration software should readily make available HSBY diagnostic and
status information in the bus view configuration mode. A separate and single
Master GSD file for a HSBY Master should be created and used.
For simplicity, clarity, and synchronization purposes, the configuration software
will allow for a single network configuration to be utilized for the HSBY PTQ
Master modules. For example, the user will configure a single network and
download the configuration; the software will download the configuration files to
both units and indicate that the modules are synchronized and whether the
download was successful for both modules.
Downloading the module's configuration files will be transparent to the user. Both
modules are required to be connected to the Ethernet network, and upon
download, PCB will automatically download configurations to both modules. If the
download process is unsuccessful, the PCB will inform the user, and the modules
may have different CRC database values determined by the PROFIBUS FDL
ping message.
A Master in the configuration process is initiated as neutral (offline or not
connected) until it reads status information from the PLC. Then it will operate in
Active, Passive, or Offline mode.
Bus Parameters
The PROFIBUS Master bus parameters for a Hot Standby project are
automatically adjusted for best performance by the software. A new checkbox in
the PROFIBUS tab in the Master properties dialog box, called "Hot Standby
System", has been added to identify the Master as a HSBY Master set. The
same Bus Configuration will be downloaded to both Masters, ensuring that both
the active and the remote (passive) Master get exactly the same configuration
and checksum values.