Description
The ABB 129740-002 is officially identified as an SIO Assembly /-102, with the long description “SMART I/O SMART WEIGHT”. ABB lists it as a spare part, with 129740-102 shown as the newer replacement product ID.
This component belongs to ABB’s Smart I/O product family and is intended for industrial automation equipment requiring specialized I/O and control-interface functions. The exact application should be matched to the original system configuration and hardware revision.
🔧 Key Features
• ABB Smart I/O assembly
• SIO Assembly /-102 designation
• Smart I/O / Smart Weight application
• Industrial automation spare part
• 16-point I/O configuration reported by industrial parts documentation
• Designed for system-level I/O interface applications
• Suitable for replacement and maintenance of legacy ABB equipment
• Replacement product ID: 129740-102
📋 Product Datasheet
• Brand: ABB
• Model: 129740-002
• Product Type: SIO Assembly / Smart I/O Assembly
• ABB Type Designation: HKQCS PARTS ON LINE
• Catalog Description: SIO ASSEMBLY/-102
• Long Description: SMART I/O SMART WEIGHT
• I/O Configuration: 16-point*
• Main Function: Smart I/O interface / system control
• Product Category: Spare Parts
• Replacement Product ID: 129740-102
• Power Supply: System dependent*
• Communication: System dependent*
• Dimensions: Approx. 170 × 105 × 32 mm*
• Net Weight: 6.4 kg according to ABB product data*
• Operating Temperature: System dependent*
• Mounting: Industrial control system installation
• Country of Origin: China
• Customs Tariff Number: 90329000
ABB’s current product data specifically lists the net weight as 6.4 kg, country of origin as China, and replacement product ID as 129740-102.
🏭 Typical Applications
The 129740-002 may be encountered in:
• Industrial automation systems
• ABB control systems
• Smart I/O installations
• Machine control equipment
• Process automation
• Legacy automation system maintenance
• Industrial spare-parts replacement
⚡ Functional Description
The SIO assembly provides a specialized interface within the associated ABB automation system. Its exact signal and communication functions depend on the host equipment and original configuration.
One important point: several third-party listings describe this part as a generic intelligent I/O module, while ABB’s own product record identifies it more specifically as “SIO ASSEMBLY/-102” and “SMART I/O SMART WEIGHT.” For procurement and replacement work, the ABB classification should take priority.
🔌 Installation & Configuration
Basic replacement procedure:
• Verify the complete part number 129740-002
• Check the existing ABB system and SIO configuration
• Compare connectors and mounting arrangement
• Record the original wiring before removal
• Install the replacement assembly
• Reconnect all field and system interfaces
• Restore system power
• Check I/O and system diagnostics
After startup, verify the connected signals and confirm that the host controller recognizes the SIO assembly correctly.
🛠️ Replacement Notes
Before ordering, confirm:
• Part number 129740-002
• SIO Assembly /-102 designation
• Hardware revision
• Existing system configuration
• Connector arrangement
• Replacement compatibility with 129740-102
ABB currently identifies 129740-102 as the replacement product ID for 129740-002.
📦 Ordering Information
ABB 129740-002 | SIO Assembly /-102 | Smart I/O Smart Weight
The official ABB product record identifies 129740-002 as a SIO Assembly /-102 spare part and lists 129740-102 as its replacement product.
