Cumberland EDGE 890-00601, Installation And User Manual

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Chapter 27: Controller redundancy
• Network A is the EDGE automation network. The controller on this bus is the main and default
active controller
• Network S is the EDGE safety network. The controller on this bus is the backup and default stand-
by controller
• Controller 1 is the Main Controller and default active controller
• Controller 2 is the backup and default stand-by controller
• Network E is the Ethernet network
• A modem and access to the cloud is optional, but is needed to use the remote access feature
Once you have correctly connected the system, controller pairing is automatic. The two controllers share
the same house/barn license when paired. The two controllers also share the same configuration, equip-
ment, and settings; only one of the two needs to be configured.
Once controllers are paired, the system automatically assigns which controller is the default active con-
troller, and which one is the default stand-by controller.
For a redundant system to work correctly, the following criteria must be met:
• The active default controller is wired to the EDGE automation network
• The stand-by default controller is wired to the EDGE safety network
• Only one Edge network must be wired to each controller
• The active default controller is the controller with the house/barn license
Active controller characteristics and functions
• Runs the EDGE system logic and controls the modules
• Is the controller to which you connect when accessing EDGE remotely
• Has the same user interface as a single (not paired) EDGE system
• • Gives access to all settings
Stand-by controller characteristics
• Constantly monitors its own EDGE network but does not participate in the system logic (only the
active default controller reads the inputs and dictates what the output states should be)
• Shows all system states, and allows daily chores to be performed through the main screen and the
operation pages. The System configuration and Setup menus are not accessible on the stand-by
controller
• It is not accessible by remote access
The stand-by controller functions as a remote display which monitors the state of the system. If the active
controller fails, the stand-by controller takes the role of the active controller by taking control of the mod-
ules and the system logic.
The controllers share a license, and configuration. They are both ready to change functions when need
be (from active to stand-by or from stand-by to active). To coordinate their respective functions, active
and stand-by controllers exchange information on both the Ethernet and EDGE networks.
178 895-00693 EDGE