Selection boundary
Two current outputs support default or hold-last-state behavior.
GE Fanuc 4-20 mA
GE Fanuc IC660BBA104 Genius Current-Source Analog I/O Block
Four-input, two-output current-source analog block for 4-20 mA field loops.
01Model Profile
IC660BBA104 combines four current inputs and two current outputs for 4-20 mA devices on the Genius bus. The block supplies isolated loop power, so separate excitation is not required for the connected current signals.
Each circuit supports independent linear scaling into application engineering units. Inputs provide selectable conversion time and alarm supervision, while outputs can hold last state or assume a configured default.
A dedicated output can control an IC660BSM021 Bus Switching Module in redundant bus installations. Input open-wire and alarm diagnostics are complemented by output feedback, overrange and underrange checks.
Circuits4 inputs / 2 outputs
Signal range4-20 mA
Input overrange0-25 mA
Supply93-132 VAC or 105-145 VDC
02Technical Data
Circuits4 inputs / 2 outputs
Signal range4-20 mA
Input overrange0-25 mA
Supply93-132 VAC or 105-145 VDC
Input resolution1 µA
Conversion time16.6-400 ms selectable
Group isolation300 V RMS
Dimensions224.4 × 88.9 × 100.0 mm
Weight1.8 kg
Heat dissipation12 W maximum
03Current Loop Signal Path
- Four inputs include loop excitation and independent scaling.
- Input conversion time can be balanced against update requirements.
- Open wire, high/low alarm and range diagnostics supervise each input.
04Output and BSM Behavior
Configuration point
Output feedback checking compares commanded and measured behavior.
Installation check
The BSM control path is specified for IC660BSM021 only.
05FAQ
How does IC660BBA104 implement its Current Loop Signal Path function?
Four inputs include loop excitation and independent scaling.
Why must Output and BSM Behavior be reviewed for IC660BBA104?
Two current outputs support default or hold-last-state behavior.
Which Current-source I/O organization arrangement applies to IC660BBA104?
Four powered current inputs and two current outputs share the block communication path.
Which Circuits and Signal range values define the Current-source I/O organization configuration IC660BBA104?
Circuits: 4 inputs / 2 outputs; Signal range: 4-20 mA.
Before commissioning IC660BBA104, which Current Loop Signal Path check matters most?
Input conversion time can be balanced against update requirements.
Which identity boundary is documented for IC660BBA104 when reviewing Current Loop Signal Path?
No model-specific replacement or lifecycle statement is used on this page; identify the exact article and system configuration instead of assuming equivalence.
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