Selection boundary
The block compares output command with its internal switching state.
GE Fanuc 4 isolated pairs
GE Fanuc IC660BBS100 Genius Isolated I/O Block
Eight isolated 115 VAC/125 VDC I/O circuits with failed-switch diagnostic monitoring.
01Model Profile
IC660BBS100 provides eight configurable input/output circuits arranged as four isolated pairs. Field circuits can operate at nominal 115 VAC or 125 VDC while each pair remains isolated from the other groups.
This version reports a Failed Switch diagnostic when an output command does not match the internal switching state. It also supports tristate input open-wire detection, loss-of-I/O-power detection, overload, no-load and overtemperature supervision.
IC660BBS102 is the documented replacement for IC660BBS100. The replacement relationship does not remove the need to check terminal-assembly revision because later terminal assemblies are not backward compatible with every earlier electronics assembly.
Circuits8 configurable isolated I/O
Grouping4 isolated pairs
Field supply115 VAC or 125 VDC
Output current2 A per point
02Technical Data
Circuits8 configurable isolated I/O
Grouping4 isolated pairs
Field supply115 VAC or 125 VDC
Output current2 A per point
Block current15 A maximum
Continuous group isolation250 VAC/VDC
Block isolation1500 V
Dimensions224.4 × 88.9 × 100.0 mm
Weight1.8 kg
Documented successorIC660BBS102
03Isolated Pair Architecture
- Two circuits share each isolated field-power group.
- Control power can be AC or DC independently of the I/O circuit supply.
- Isolation is maintained between pairs and from each pair to ground.
04Failed-Switch Diagnostic
Configuration point
Parallel manual switches can create a mismatch that this version reports.
Installation check
Select the no-failed-switch variant when parallel field switching is intentional.
05Replacement
Documented relationship
IC660BBS102 replaces IC660BBS100; verify terminal-assembly revision.
06FAQ
How does IC660BBS100 implement its Isolated Pair Architecture function?
Two circuits share each isolated field-power group.
Why must Failed-Switch Diagnostic be reviewed for IC660BBS100?
The block compares output command with its internal switching state.
Which Four isolated circuit pairs arrangement applies to IC660BBS100?
Eight configurable points are electrically organized as four isolated pairs.
Which Circuits and Grouping values define the Four isolated circuit pairs configuration IC660BBS100?
Circuits: 8 configurable isolated I/O; Grouping: 4 isolated pairs.
Before commissioning IC660BBS100, which Isolated Pair Architecture check matters most?
Control power can be AC or DC independently of the I/O circuit supply.
Which replacement relationship is documented for IC660BBS100 when reviewing Isolated Pair Architecture?
IC660BBS102 replaces IC660BBS100; verify terminal-assembly revision.
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