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SKU 2178405  UPC 0799705798472

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Common misspellings:
  • 1C660BBA024
  • IC66oBBA024
  • IC6608BA024
  • IC660B8A024
  • IC660BBAo24
  • IC660BBA02A
  • IC660BBA024

Product Description

IC660BBA024 is an I/O Block from the GE Fanuc Genius I/O Series. The block has a rated voltage of 24/48 VDC. IC660BBA024 is mainly used as an interface controller with devices that accept 4mA to 20mA analogue signal. There are four inputs and two outputs. It provides isolated power to all six circuits, thus eliminating the need to separate power from 4mA to 20mA devices. It also lets the user select linear scaling values for each circuit independently of the others using those values. A handheld monitor enables viewing output as engineering units.

To translate analog signals to digital signals, the input channels use voltage to frequency converters and counters. The block converts the value to engineering units before it is sent to the central processing unit.

Each one of the four independent inputs has a 24V current loop power supply that is capable of providing 25mA of current. Input channels are each isolated from other circuits within the block. Input accuracy is 0.1%. To provide the correct combination of noise rejection and input resolution, input conversion is selected. Conversion times are programmable from 16mS to 400mS. Resolution increases as the conversion time extends. Input resolution is 1µA for 200mS conversion time.

The two independent IC660BBA024 output circuits possess the same electrical configuration but are isolated from all other circuits on the block. The block provides power for the outputs’ current loops.

The two output channels make use of a dual 12-bit digital to analog converter. Each channel individually controls the currents from 0mA to 24mA. Output accuracy is 0.15% at 25C, while output resolution is 6µa.

When installing a Current-Source Analog I/O Block into a redundant bus cable system, take advantage of the block’s dedicated digital output to pair it with a 24/48 VDC Bus Switching Module. IC660BBA024 block software is configurable regardless of whether you use bus switching or not. IC660BBA024 block does not need user calibration since Genius series block diagnostics come standard.

The user may opt to remove the electronics assembly and replace it with a compatible model. IC660BBA024 electronics assembly and the terminal assembly are separate pieces of the same block. The user can substitute the electronics without disturbing field wiring.

IC660BBA024 current-source Analog Block design makes upgrading and repair easier. Simply unscrew the holding screw at the top and bottom of the electronics assembly. Use a block puller tool to pull off the terminal assembly, thereby completing the uninstallation.

Point to note: IC660BBA024 is almost identical to IC660BBA104, the only difference being the power supply. IC660BBA104 uses a 115 VAC power supply.


Technical Specifications 

Rated Voltage: 24/48 VDC
# of Points: 4 Inputs / 2 Outputs 
Input Range: 4 mA to 20 mA
Output Range: 4 mA to 20 mA
Operating Voltage: 18 - 56 VDC
Points per Common:   One group of 4 Inputs and one group of 2 Outputs



Technical Information


Block Type: CatalogNumbers:

115 VAC / 125VDCCurrent Source Analog block TerminalAssemblyOnly ElectronicsAssemblyOnly

24 / 48VDCCurrent Source Analog block TerminalAssemblyOnly ElectronicsAssemblyOnly

Four input / 2 outputcircuits

IC660BBA104 IC660TBA104 IC660EBA104 IC660BBA024 IC660TBA024 IC660EBA024

Size (height x width x depth)


LED’s (I/O Block): HeatDissipation: BSMControl:

8.83” (22.44cm) x 3.50” (8.89cm) x 3.94” (10.00cm)

4 lbs. (1.8 kg)

UnitOK,I / OEnabled 12 Wattsmaximum

Switches one 24 / 48 VDC BSM (IC660BSM021)

Block to Block Isolation: Group to GroupIsolation:

1500 V for one minute 300 V rms

115VAC/125 VDCblockpower: Powersupplyvoltage Maximumcurrent

Frequency / ripple

Power supply dropout time

115 VAC 125 VDC


250mA 140mA

47–63 Hz 10% max. ripple

1 cycle 10 mS min.

24/48 VDCblockpower: Powersupplyvoltage Maximumcurrent Ripple

Power supply dropout time


18–56 VDC


10% max.

10 mS min.

InputSignalCharacteristics: Input accuracy (at 25 C) Inputresolution

Inputconversion time Range Overrangecapacity Inputdiagnostics

Channel to channel isolation Thermal drift (from 25 C)


0.1% of full scale reading 1A

16.6mS to 400mS (user selectable) 4mA to 20mA

0mA to 25mA

Underrange, Overrange, High Alarm, Low Alarm, Open Wire 300 volts RMS

70 PPM per degree C typical


100 ohms $ 5%

Normal Mode Rejection:

–45 dB at 50, 60 Hz

Input ExcitationCharacteristics:

Open circuit voltage Short circuit current Loopimpedance


24 VDC

< 75mA

1000 ohms max. (0mA to 20mA)800 ohms max. (20mA to 25mA)

OutputSignalCharacteristics: Output accuracy at 25 C Outputresolution

Output update frequency Range Overrangecapacity

Outputdiagnostics: Load:

Thermaldrift  (from 25C):


0.15% of full scale reading 6A

6mS to 8mS typical 4mA to 20mA

0mA to 24mA

Underrange, Overrange, Feedback error 0 ohms to 850 ohms

35 PPM per degreeC typical

Environmental: Operating Temperature Storage Temperature Humidity



0C   to   +60C   (+32F   to +140F)

–40C   to   +100C   (–40F   to  +212F)

5% to 95% (non–condensing)

5 – 10 Hz 0.2” (5.08mm) displacement, 10–200 Hz at 1G


Troubleshooting IC660BBA024

Troubleshooting information is available on IC660BBA024's website page; it also includes a datasheet, a user manual, and a wiring diagram.

Repair your IC660BBA024

PDF Supply can repair your IC660BBA024 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

  • Question:  What is an IC660BBA024?  Answer:  The IC660BBA024 is a 24/48 VDC Current-Source Analog Block from the GE Fanuc Genius I/O Series. IC660BBA024 has 4 input and 2 output circuits for 4-20mA devices. This block provides isolated power to all circuits.
  • Question:  What is the difference between IC660BBA024 and IC660BBA104? Answer:  The only difference between these blocks is their power supply.
  • Question:  Is any separate power required for 4-20mA signals?  Answer:  No, no separate power is required.
  • Question:  What do all the circuits on IC660BBA024 support?  Answer:  They support independent selection of linear scaling values.
  • Question:  What can these values be used to convert?  Answer:  They can be used to convert the internal values into engineering units suitable for the application.
  • Question:  Can the Hand Held Monitor be used for configuration of IC660BBA024?  Answer:  Yes, configuration of IC660BBA024 must be done with HHM (IC660HHM501) version 3.7 or later.
  • Question:  What diagnostic tests does IC660BBA024 perform?  Answer: 
    • Input Open Wire detection
    • Input high and low alarms
    • Input Over range and Under range
    • Output Over range and Under range
    • Output Feedback Error
  • Question:  What other features of this block can be configured?  Answer: 
    • Input alarm detection
    • Output Hold Last State or default
    • Selectable Input conversion time up to 400mS
    • CPU Redundancy
    • Output feedback checking
  • Question:  What should I do if my IC660BBA024 has failed?  Answer:  Your IC660BBA024 may need repair

For more information on the IC660BBA024 Current-Source Analog Block of the GE Fanuc Genius I/O Series, please see the Datasheet User-Manual.

The final letter in the part number (ex. IC660BBA024K) indicates the revision. Revision K and later use the newer style electronic housing and therefore need the newer style plastic door and may indicate some compatibility issues with the terminal strip.

ST. LOUIS, Feb. 1, 2019 – Emerson today announced it has completed the purchase of Intelligent Platforms from General Electric.

Common related search terms: ConfigurationDatasheetEmersonManualPDFPLCPriceRepairSpecificationTroubleshootUser-ManualWiring


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