- Product details
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ABB INDUSTRIAL CONTROL COMPONENT
ABB 6644789A2
Controlway daughter card
A Controlway daughter card used in ABB Bailey Harmony and INFI 90 communication hardware to maintain deterministic module-to-module data exchange in installed control systems.
SeriesHarmony / INFI 90
Device classControlway daughter card
System roleControlway bus interface
ConditionNew Original
WarrantyOne year
AvailabilityIn stock
Official technical data
ABB Harmony / INFI 90
ManufacturerABB Bailey
Product typeControlway daughter card
Part number6644789A2
PlatformHarmony / INFI 90
NetworkControlway
Board functionBus communication interface
Host useNetwork processing hardware
Service roleRevision-matched replacement
InstallationInternal PCB assembly
LifecycleLegacy control spare
Monitoring & Control
Observe controller diagnostics and Controlway communication status before and after board replacement. Preserve the host module revision, slot assignment and firmware record to support controlled recommissioning.
Communication & Connectivity
The daughter card provides the Controlway communication path inside compatible Harmony or INFI 90 network-processing hardware. Confirm the supported host revision, connector seating and bus configuration before energizing.
Technical reference: manufacturer hardware documentation and catalog identity for 6644789A2.
Brand characteristics
ABB control hardware combines catalog-defined identities, structured system architecture and documented service practices for dependable lifecycle maintenance.
Catalog identityThe complete 6644789A2 marking supports precise replacement matching.
System integrationControlway daughter card hardware follows a defined role within Harmony / INFI 90.
Lifecycle continuityDocumented part identities support controlled maintenance of installed systems.
Application fields
6644789A2 supports controlway bus interface wherever established ABB control architecture remains in active industrial service.
Process controlControlway bus interface for continuous and batch-process automation.
System maintenanceRevision-matched replacement of installed ABB control hardware.
Cabinet projectsStructured connection work during retrofit and lifecycle modernization.
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01 · IDENTIFY
Provide the complete 6644789A2 marking, installed system, connection position and required quantity.
02 · VERIFY
Confirm Harmony / INFI 90, the controlway bus interface, connector assignment and complete hardware identity.
03 · QUOTE
Review pricing, lead time, warranty and delivery terms for the requested quantity.
04 · DISPATCH
Complete final checks, antistatic protective packing, documentation and destination-based shipment planning.
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