The Allen-Bradley 1793-OB16P, also cataloged as the 1793-OB16P FLEX Integra Digital Output Module, operates as a dedicated hardware component for discrete signal switching and load actuation within FLEX Integra control platforms.
Hardware Specifications
Parameter
Specification
Model
1793-OB16P
Brand
Allen-Bradley
Origin
USA
Weight
0.45 lbs (0.20 kg)
Dimensions
Standard FLEX Integra module footprint
Operating Temp
0 to 55 deg C
Power Consumption
Passive backplane load
Operating Voltage
24 VDC nominal
Output Type
Digital sourcing (electronically protected)
Output Channels
16 points
Termination Type
Screw Terminals
Mounting Format
DIN-rail mount
Backplane Bus Communication Velocity and Circuit Protection
The 1793-OB16P module integrates sourcing output driver circuitry with direct screw-terminal interfaces, maintaining high backplane bus communication velocity across internal FLEX Integra logic channels. Operating at 24 VDC, the electronically protected driver circuits automatically sense short-circuit and overcurrent conditions, isolating affected output channels to prevent thermal damage to the internal board architecture. Channel-to-backplane optical isolation shields internal bus communication lines from field-side electrical noise and switching transients.
Frequently Asked Questions
Q: What action does the electronic protection mechanism take on the 1793-OB16P during a field short circuit?
A: The short-circuit protection circuit trips the output channel driver into a high-impedance state when current exceeds safety thresholds, resetting automatically once the field fault is cleared and the output control logic is cycled.
Q: Are external terminal base assemblies required to wire field devices to the 1793-OB16P?
A: No. The FLEX Integra 1793-OB16P features integrated terminal blocks on the module body, allowing direct wiring of field actuators to the onboard screw terminals.
Field Installation Guidelines
Mount the module onto a 35 mm DIN rail, securing the rear retention latches against the rail surface.
Strip 24 VDC field output wiring to specified lengths and secure the conductors into the onboard screw terminals using standard terminal screwdrivers.
Wire the incoming primary 24 VDC field power supply across the designated module power terminals, confirming correct voltage polarity.
Separate field actuator cabling from high-voltage AC lines within the control enclosure to minimize inductive coupling.
Ensure the DIN-rail grounding contact makes unpainted, low-impedance connection with an earth-grounded steel rail.
