FlexLogix Overview
|
|
|
FlexLogix System Overview
A FlexLogix system provides a multi-purpose programmable controller. You can distribute I/O to locations close to sensors/actuators. Connect multiple FlexLogix controllers in networks for distributed processing.
Because it has a Logix control engine, a FlexLogix controller supports the Logix instruction set, tasking model, and data model. A FlexLogix controller and other Logix controllers have a common approach to programming and configuring I/O with RSLogix 5000 programming software. The 1794 I/O products offer a range of digital and analog I/O (including intelligent I/O) in a rugged modular assembly.
As of December 31, 2008, FlexLogix controllers ceased to be offered for general sale; however, we plan to provide repair services and technical support for FlexLogix controllers for an additional seven years, if components remain available. For more information: http://www.ab.com/programmablecontrol/pac/flexlogix/
Typical Configurations
A simple FlexLogix system can consist of a single, stand-alone assembly with one controller and as many as eight I/O modules.
|
In a more complex FlexLogix system, use multiple controllers AC ross networks. Distribute the I/O platforms over multiple I/O links.
|
FlexLogix Backup System
FlexLogix backup on a DeviceNet network is a simple, low-cost, backup system targeted towards smaller applications that require fast switchovers from a primary to a secondary controller. FlexLogix backup is faster that a software-implemented switchover and lower cost than ControlLogix redundancy.
FlexLogix backup is suited for RTU (remote terminal unit) and power generation applications. It is also suited for small process applications where environmental control is critical.
|
Requires:
- RSLogix 5000 software must be version 10 or later and FlexLogix firmware must be revision 10 or later.
- The primary controller and the secondary controller each need their own 1788-DNBO scanner. The 178-DNBO firmware must be at revision 2.x or higher.
- The DeviceNet network should be set up with both the primary and secondary 1788-DNBO node addresses set to 0.
- All the I/O and operator interface devices that require backup must be on the DeviceNet network.
Additional Resources
These and other publications are available for download from the Rockwell Automation Literature Library.
| Related Publications | Publication Number |
| ControlLogix Selection Guide | 1756-SG001 |
| CompactLogix Selection Guide | 1769-SG001 |
| SoftLogix5800 Selection Guide | 1789-SG001 |