Allen-Bradley Flex I/O User Manual

14 FLEX I/O Digital Input and Output Modules w/ Diagnostics
Publication 1794-IN096C-EN-P - August 2015
Sensor Diagram for the 1794-IB16D Module
Sensor Diagram for the 1794-OB16D Module
3-Wire
Sensor
External
Power
Supply
1794-IB16D
3-Wire
Sensor
2-Wire
Sensor
External
Power
Supply
1794-IB16D
2-Wire
Sensor
3-Wire
Sensor
External
Power
Supply
1794-IB16D
Dummy
Resistor
External
Power
Supply
1794-IB16D
Shunt
Resistor
Shunt
Resistor
Sensor-power lines -
Detect open wire
Detect short circuit
Sensor-power lines -
Detect open wire
3-Wire
Sensor
External
Power
Supply
1794-IB16D
3-Wire
Sensor
2-Wire
Sensor
External
Power
Supply
1794-IB16D
2-Wire
Sensor
3-Wire
Sensor
External
Power
Supply
1794-IB16D
Dummy
Resistor
External
Power
Supply
1794-IB16D
Shunt
Resistor
Shunt
Resistor
Sensor-power lines -
Detect open wire
Detect short circuit
Sensor-power lines -
Detect open wire
Unused input port -
Dummy resistor needed or
Fault LED remains lighted.
20kΩ, ≥1/8W
20kΩ, ≥1/8W
+
_
+
_
+
_
+
_
20kΩ, ≥1/8W
Load
External
Power
Supply
1794-OB16D
Dummy
Resistor
Unused output port -
Dummy resistor needed or
Fault LED remains lighted.
10kΩ, ≥1/8W
+
_

Allen-Bradley Flex I/O Specifications

General

Brand	Allen-Bradley
Model	Flex I/O
Category	Adapter
Language	English