The Allen-Bradley 1771-OW16 (1771OW16 Digital Output Module) provides 16 discrete output points for switching AC loads through channel-isolated contact outputs in a PLC-5 I/O system.

Model Identification

The supplied catalog data identifies 1771-OW16 as a 16-point digital output module. The spare model is listed as 1771OW16. No additional suffix or revision information is supplied.

Hardware Specifications

Isolated Contact Output Architecture

The 1771-OW16 is specified with channel-isolated contact outputs. This output arrangement provides electrical separation between individual output channels rather than treating all field output circuits as a single common contact group.

The module is rated for 24-250 VAC operation at 50/60 Hz, with a stated 2 A output rating. The actual load circuit must remain within the applicable output contact rating and field wiring requirements.

The 16-point architecture provides discrete output density within the PLC-5 I/O structure. The supplied information does not specify switching delay, minimum load current, contact resistance, leakage current, or surge suppression characteristics, so these values should not be inferred.

PLC-5 I/O Interface Considerations

The module operates as a discrete I/O component within the PLC-5 architecture. Field output states are determined by the controller and transferred through the I/O backplane to the output circuitry.

EtherNet/IP and other network characteristics are not inherent specifications of this module. Network timing, firmware compatibility, and communication behavior depend on the associated PLC-5 system hardware and communication architecture.

Ordering Information

• 1 x Allen-Bradley 1771-OW16 digital output module
• 1 x 16-point AC digital output module
• No external accessory, terminal assembly, or mounting kit is identified in the supplied data

Field Installation Guidelines

Module Installation

• Install the module only in a compatible PLC-5 I/O chassis.
• Inspect the backplane connector before insertion.
• Remove system power before module installation or removal unless the applicable PLC-5 documentation explicitly permits energized replacement.
• Ensure the module is fully seated before applying power.
• Do not apply mechanical force to the circuit board or connector.

Field Wiring

• Verify the connected AC load voltage before energizing each output circuit.
• Keep field AC wiring separated from low-level analog and communication wiring.
• Use appropriate protective devices for externally connected loads where required by the load circuit.
• Maintain cabinet grounding and bonding according to the applicable installation standard.
• Do not exceed the specified 2 A output rating.

Isolation and Noise Control

• Preserve the channel-isolated wiring arrangement during field installation.
• Avoid creating unintended common connections between isolated output circuits.
• Route switching-load conductors to minimize electromagnetic coupling into adjacent signal circuits.
• Inspect field terminals for secure mechanical connections before commissioning.

Frequently Asked Questions

• How many output points does the 1771-OW16 provide?

  The module provides 16 discrete output points. The supplied product information identifies the outputs as channel-isolated contact outputs.

• What type of output does this module use?

  The 1771-OW16 uses channel-isolated contact outputs. The supplied data does not identify the internal contact technology or suppression circuit.

• What AC voltage range is specified?

  The supplied specification identifies an operating range of 24-250 VAC at 50/60 Hz for the output circuits.

• What is the specified output current?

  The product information specifies 2 A. The applicable load type and switching conditions should be checked against the original technical documentation.

• Is the output channel isolation common to all 16 points?

  The supplied description specifically states "channel-isolated contact." It does not provide a detailed isolation schematic or terminal grouping.

• What is the module power consumption?

  Power consumption is not provided in the supplied technical data. A specific value should not be inferred from the 2 A field-output rating.

• Does the supplied data confirm hot-swapping?

  No. Hot-swap capability is not stated. Module insertion or removal should therefore be performed with power removed unless the applicable system documentation specifies otherwise.

• What environmental operating temperature is specified?

  No operating temperature is included in the supplied data. The installation environment should therefore be evaluated using the applicable Allen-Bradley documentation.