ABB Symphony Harmony/INFI 90 DCS Remote I/O module
DESCRIPTION
As part of ABB’s continued lifecycle support for Symphony Harmony/INFI 90 process control systems, a Remote I/O Module Upgrade Kit with a new, low-cost IMRIO22 module is now available.
Problems solved with Remote I/O upgrade kit
− Component obsolescence, new parts are no longer available
− Cost to replace parts is high
− Decreasing ability to repair parts
− Electrical remote communication links are susceptible to noise; lightning strikes
− Difficult to troubleshoot remote I/O problems
− Link is slow; takes time for I/O points to update
− Controller configuration requires special “tuning” using multiple segment control blocks
− Firmware compatibility issues between IMRIO02 and some I/O modules
− Must be careful when replacing parts in the system
Benefits
− Reliability; newer technology, improved fiber optic communications
− Availability of new replacement parts
− Easy to replace the existing remote I/O setup
– same rack form factor; uses existing fiber optic cables; the RIO22 replaces the RIO02 in the Remote cabinet
− Reduced cabinet footprint as the RIO02 in the Local cabinet is no longer required; its functionality is now included in a BRC300/400. The BRC replaces existing MFP or MFC controllers in the Local cabinet
− Improved control performance - increased memory capacity, faster execution and communication speeds
− Improved speed of communication link and remote I/O updates
− Improved hardware/firmware compatability between remote I/O processor and remote I/O modules
− Easier firmware upgrades; IMRIO22 module has flash memory
− Improved redundancy; faster detection/failover from primary to backup IMRIO22
− Improved error-checking and diagnostics for troubleshooting
− Redundant HNET remote communication channels
Minimum System Requirements
− BRC300/400 controllers require Process Bus Adapters (PBA). Please add these if they do not currently exist
− Composer Engineering Tools version 5.0 or later
− Fiber optic cable (62.5/125 micrometer multimode) for remote link
Restrictions/Limitations
− Supports only fiber optic point-to-point communication links
− Electrical links (twin axial or coaxial cable) must be replaced with fiber optic
− Serial or daisy chain multi-drop links are not supported; multiple drops to remote cabinets (up to 6) now require a star configuration from the Local cabinet
System/Application Compatibility
The remote I/O functionality is compatible with all other existing features of the Harmony BRC300/400 or later controllers. This includes, but is not limited to, the following:
− Support for multiple remote I/O links
− Support mixed I/O types, e.g. IOR/S800, Harmony Rack I/O, Harmony Block I/O
− Re-use of existing fiber optic remote link cables
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