The General Electric IC660BSM021 is a 24/48 VDC Genius I/O Bus Switching Module (BSM) designed to enhance communication reliability in industrial automation systems. It allows Genius I/O blocks to interface with two independent serial buses simultaneously, providing a redundant communication path in the event of a primary bus failure.
Features
Connects Genius I/O blocks to dual communications cables.
Supports up to 8 discrete or analog I/O blocks per BSM.
Scalable system design allows up to 30 I/O blocks on a single dual-bus configuration using multiple BSMs.
Controlled by a Genius I/O block; can be forced or unforced via CPU or Hand-held Monitor.
Integrated LED indicator for active bus status.
Automatic default to Bus A when de-energized.
Applications
Automotive assembly and painting lines.
Power generation control systems requiring high availability.
Water treatment and chemical processing plants.
Steel and aluminum smelting environments.
Oil and gas exploration and high-integrity shutdown systems.
Technical Specifications
Model
IC660BSM021
Operating Voltage
18 to 56 VDC
Maximum Current Draw
60 mA at 48 VDC
I/O Capacity
Up to 8 discrete/analog blocks
Switching Time
Less than 20 ms
Configuration
Handheld Monitor or CPU
Tariff Code
8537101190
Installation Guidelines
Ensure the system is powered down before installing or removing the BSM.
Mount the module in a location that allows for adequate ventilation and access to the status LED.
Use shielded cabling for serial bus connections to minimize EMI interference.
Verify that the BSM is properly configured via the CPU or Hand-held Monitor before commissioning.
Ensure proper grounding of the I/O system to maintain signal integrity.
FAQ
What is the primary function of the IC660BSM021?
The IC660BSM021 is used to connect Genius I/O blocks to a dual bus configuration. If one communication bus fails, the BSM allows the system to switch to the backup bus to maintain operational continuity.
How many I/O blocks can one BSM handle?
A single IC660BSM021 module can connect up to eight (8) discrete or analog Genius I/O blocks to a dual bus.
What happens if the module is de-energized?
In its default state, when de-energized, the module automatically connects the I/O blocks to Bus A.
