ProSoft Technology PTQ-PDPMV1 - Manual (Page 191)

PTQ-PDPMV1 ♦ Quantum Platform Hot Standby Support
PROFIBUS DP Master Network Interface Module for Quantum User Manual
ProSoft Technology, Inc. Page 191 of 306
August 12, 2014
7.2 Setting Up the Modicon Quantum Hot Standby with Unity System
7.2.1 Overview
Schneider Electric is a leader in offering fault-tolerant, redundant systems, and
Hot Standby. Setting up a Modicon Quantum Hot Standby with Unity system
involves a number of processes, summarized in the following paragraphs here,
and explained in detail elsewhere.
7.2.2 Mapping the Backplane Extensions
A Modicon Quantum Hot Standby with Unity requires two backplanes with at
least four slots. You must map the two backplanes in an identical manner:
 same Modicon Quantum Hot Standby with Unity HE CPU with integrated
coprocessor (Copro)
 same firmware
o same revision level
o same Modicon Quantum power supply module
o same Modicon Quantum RIO Head
And, if other modules are used, for example local I/Os, NOMs, NOEs, those
modules must be identical.
For additional information on Modicon Quantum Hot Standby Startup support
refer to the Unity Pro User Guide.
7.2.3 PTQ-PDPMV1 Hot Standby Considerations
Limitations
The solution allows for up to six PTQ modules per rack (for both Primary and
Standby).
It will not be possible to install a PTQ in a RIO drop.
HSBY Operating Modes
Generally, the user will have full control over the switchover via the command
register through application program control. This is accomplished by the user
application through the SW60 command register.