GE Fanuc IC660BSM021 Dual Bus Switching Module

GE Fanuc IC660BSM021 Bus Switching Module

The GE Fanuc IC660BSM021 is a Genius bus switching module. It connects I/O blocks to dual serial buses. This module provides a backup communication path.

Technical Specifications

• Brand & Model: GE Fanuc IC660BSM021
• Function: Bus Switching Module (BSM)
• Voltage: 18 to 56 Volts DC (24/48VDC rated)
• I/O Capacity: 8 discrete/analog blocks per BSM
• Max Expansion: Up to 30 blocks with multiple BSMs
• Current Draw: 60mA max at 48VDC
• Switching Time: Less than 20 milliseconds
• Reliability: 500,000 minimum operations
• Configuration: Handheld monitor or CPU
• Default Bus: Bus A (de-energized state)
• LED Indicator: Lit when Bus B is active
• Dimensions: 3.50" × 2.25" × 2.5" (89mm × 57mm × 64mm)
• Weight: 0.4 kg (0.88 lbs)

Key Features

• Dual serial bus connection
• Backup communication path during bus failure
• Controls up to 8 I/O blocks directly
• Expandable to 30 blocks with multiple BSMs
• Less than 20ms bus switching time
• 500,000 operations reliability rating
• 24/48VDC operating voltage
• LED status indicator for Bus B
• Configurable via handheld monitor or CPU
• Prevents unnecessary bus switching

Electrical Specifications

• Operating voltage: 18-56VDC
• Current at 24VDC: 10mA (Bus A), 30mA (Bus B)
• Current at 48VDC: 30mA max
• Bus A voltage: <4VDC when active
• Bus B voltage: 18-50VDC when active

FAQ

Q: How many I/O blocks per module?

A: IC660BSM021 supports 8 discrete/analog blocks.

Q: What is the switching time?

A: Less than 20 milliseconds switching time.

Q: What is the reliability rating?

A: Minimum 500,000 operations.

Contact

For the IC660BSM021 module:

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