ProSoft Technology PTQ-104C - Manual (Page 88)

Hot Standby Support 49TPTQ-104C ♦ 48TQuantum Platform
12TUser Manual 47TIEC 60870-5-104 Client
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.
7.2.2 Mapping the Backplane Extensions
A Modicon Quantum Hot Standby with Unity requires two backplanes with at
least four slots. The two backplanes must be mapped 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
If other modules are used, for example local I/Os, NOMs, NOEs, these 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-104C Hot Standby Considerations
Limitations
The solution allows for up to six PTQ modules per rack (for both Primary and
Standby).
The PTQ-104C module cannot be installed 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.
Page 88 of 136 ProSoft Technology, Inc.
March 4, 2013