Technical specifications for IC660BBA026
Manufacturer :GE Fanuc Emerson
Product Line :Genius I-O
Part Number: IC660BBA026
Weight: 2.00 lbs (0.91 kg)
Product Description :Analog input module
No. of inputs :Six (6) analog inputs
Points per common :One group of 6
Input Accuracy :0.1% of the full-scale reading
Output Signals: 4-20 mA
Input Resolution :1 microamp
Supply voltage range: 18-56 VDC
Block Power :115V AC/ 125V DC
Communication protocol :Genius Protocol
Heat Dissipation: 12 Watts
Resolution: 1µA
Status LEDs: Unit OK, I/O Enabled
Input conversion time :16.6ms to 400ms (user selectable)
Block to Block Isolation :1500 Volts
Accuracy :0.1% of full-scale reading
Group to Group Isolation :1500 V RMS
Size (HxWxD:) 8.83 x 3.34 x 3.91 inches
LEDs (I/O Block) :Unit OK, I/O Enable
The IC660BBA026 is a standalone module belonging to the Genius I/O Block series. Originally developed by GE Fanuc Automation, the product line is now manufactured by Emerson Automation, with the module retaining all its core design features. It is configured with six analog input channels that support current-sourcing wiring and delivers a resolution of 6 µA.
As an integral component of the Genius I/O Block system, the IC660BBA026 is equipped with an embedded Genius Bus communication interface. This enables the module to operate independently as a fully functional remote I/O unit, capable of transmitting and receiving I/O data to and from a master controller via its native configuration settings. Boasting a rackless design, it eliminates the requirement for a dedicated backplane or chassis, thereby maximizing flexibility in installation methods. The module can be mounted either right-side up or upside down, provided it is housed within an enclosure that offers protection against airborne particles and industrial contaminants.
For deployment in a multi-drop network with multiple units of the same module or compatible products in the series, a minimum spacing of 2 inches must be maintained between individual blocks. Additionally, terminating resistors must be installed across the Serial 1 and Serial 2 terminals of the first and last nodes in the network to ensure stable communication.
Notably, the input channels of the IC660BBA026 require no calibration for normal operation. It is integrated with software-configurable diagnostic capabilities, including low and high alarm reporting, overrange and underrange detection, open-wire detection, and internal fault notification. The module also supports software-selectable input conversion times, which can be adjusted within a range of 16.6 ms to 400 ms to suit specific application requirements.
Functionally, the IC660BBA026 is a current-source input block engineered to interface with devices that output 4–20 mA analog current signals. It can be conveniently configured using a Phase B hand-held monitor, which also displays alarm limits and diagnostic error messages, and allows users to clear historical fault records. The module incorporates a voltage-to-frequency converter that converts incoming analog current signals into digital signals for processing.
Each input circuit features a 24 V-rated current loop capable of supplying up to 25 mA of current, and users can set independent upper and lower alarm thresholds for individual channels. The module’s diagnostic system is designed to detect input current levels below 2 mA, with a typical thermal drift of 70 PPM per degree Celsius.
For proper thermal management during installation, a clearance of at least 2 inches between adjacent blocks is mandatory to ensure adequate airflow. Mounting can be done in either orientation by drilling appropriate bolt holes, and a dedicated mounting kit with necessary accessories is included with the module. For safety purposes, Terminal 5—connected to the block chassis—serves as the grounding terminal. The module requires a 115 VAC or 125 VDC power supply, with the power source connected to the H terminal and the neutral line connected to the N terminal.
The IC660BBA026 is fully compatible with redundant PLC systems, as well as Series 90-30, Series 6, and Series 5 PLC platforms.
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