Uninterrupted control operation
Online upgradeable
Automatic commissioning
Bumperless transition
Introduction
Now you don’t have to worry about controller hardware failures interrupting your process and causing costly downtime.
With redundant controllers, your processes are automatically protected in the event of a hardware failure.
If the active controller fails, the backup controller automatically takes over, providing uninterrupted control operation without initialization or user intervention.
Switchover does not cause any interference with the ffeld output signals, so your process can continue to run uninterrupted.
Adding redundancy requires no special wiring or configuration; simply add a controller to your existing hardware.
Redundant controllers also support online upgrades of controller software and hardware. So you can upgrade MD Plus to MQ or MX online, or SD Plus to SQ online.
or SD Plus to an SQ or SX controller online without changing the configuration.
Benefits
Uninterrupted control operation. By installing redundant M-Series, S-Series, and PK controllers, you create a “safety net” that
protects your process from unexpected controller failures. In the event of a hardware failure, a backup controller is always available to keep your control and process up and running.
Online upgrades. Installing a redundant DeltaV controller allows you to upgrade your DeltaV system online.
New software can be installed into the backup controller online without disrupting operations.
Once the upgrade is complete, the backup controller is automatically configured and available, allowing you to switch to the new ffrmware without interrupting your process.
Once the switchover is complete, the original active controller can be upgraded. In addition, MQ controllers can be upgraded online to MX controllers.
SQ controllers can be upgraded online to SX controllers. This ensures that your system is always ready to expand as your control strategy evolves.
Automatic commissioning. The system automatically detects, commissions, and downloads spare controllers so you can safely replace equipment.
Add redundancy online by simply installing a new 2-wide backplane with system power and MQ, MX, SQ or SX controllers.
The SZ Controller Carrier or Dual Universal Safety Carrier provides 2 slots for SZ controllers, so there is no need to add anything other than additional SZ controllers.
PK controller carriers also provide 2 slots, so simply add a PK controller to an existing carrier.
The engineering database is automatically updated and the spare controller can be activated by simply assigning and downloading a controller redundancy license, all without interrupting the process.
There are no dip switches, jumpers or addresses to assign. The backup controller automatically assigns the proper backup address and starts working, protecting your process.
Bufferless Transitions The DeltaV controller is designed for bufferless control transitions from the active controller to the standby controller.
During this time, the output channels maintain their output state until the switchover is complete and the control module begins execution.
The control module uses signal status to ensure that all I/O channels are normal before taking control action on them.
All output signals are synchronized via the I/O readback function to ensure that www.abb-drive.com control calculations are made based on the current output state.
When using CHARM or DeltaV Classic I/O cards with or without Foundation™ ffeldbus devices.
This ensures an uninterrupted transfer of control during switchover.
Product description
For critical process control applications that cannot tolerate interruptions, the DeltaV system provides controller redundancy.
For critical process control applications that cannot tolerate interruptions, DeltaV systems offer controller redundancy.
The redundant controller contains the same control strategy as the active controller. A redundant link transmits control parameters to the standby controller
to ensure that it is ready to take over from the active controller. parameters to the standby controller to ensure that it is ready to take over control if needed.
When redundancy is enabled, each module calculates the updates required by the standby controller.
These updates are transmitted to the standby controller via the redundant link. These additional operations of controller redundancy Redundancy typically reduces CPU idle time by about 10%. About 10 percent.
When a failure is detected, the standby controller can take over without affecting the process control signals.
The DeltaV Event Chronicle stores a record of each switchover and the reason for the switchover, if a reason has been determined.
Replacing an existing standby controller is as simple as removing the existing unit and installing a new controller.
Replacing an existing standby controller is as simple as removing the existing unit and installing a new controller.
The activated controller will detect the spare controller and the system will automatically debug and download the new hardware. Redundancy In addition to redundant hardware, a redundant license is required.
Redundant controllers Redundant controllers are shown as individual nodes in the Explorer window, represented by the Redundant Controller icon.
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