2080-OV4 | Allen-Bradley | Digital Output Module

Configured for discrete signal switching in Micro 800 control networks, the Allen-Bradley 2080-OV4 (2080-OV4 Digital Output Module) provides direct physical/electrical execution. This hardware unit functions as a 4-point sink output module, operating within a 12-24 VDC voltage range to facilitate logic-level control signal transmission across the Micro 800 system bus.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

The 2080-OV4 integrates into the Micro 800 expansion architecture, utilizing a local bus for command reception. The module exhibits a fixed signal exchange delay of 8-10 ms, which must be accounted for in the scan time calculations of high-speed control loops. I/O density scaling is constrained by the limited slot availability on the host controller; users must ensure firmware flash compatibility between the controller and the output module to maintain deterministic operation and prevent logic execution stalls during runtime.

Frequently Asked Questions

Q: Does the 2080-OV4 support hot-swapping?

A: No. Micro 800 plug-in modules are not designed for removal or insertion under power. The controller must be de-energized to prevent electrical damage to the communication pins or the logic circuitry.

Q: Is this module compatible with sourcing logic configurations?

A: No. The 2080-OV4 is a sinking (sink) output module. It is designed to switch the load return path to common (DC negative), and it is not intended for high-side sourcing applications.

Field Installation Guidelines

• Mounting: Align the module with the plug-in connector on the controller front panel. Apply firm pressure to seat the connector fully, then secure the module using the provided retaining hardware to ensure physical stability.
• Wiring: Use the onboard screw terminals for connection. Ensure that the common negative supply is consistently connected to allow for sinking operation.
• Grounding: Bond the controller chassis to a common earth ground. This provides a stable reference for the DC sinking circuit and prevents common-mode noise from affecting signal transition timing.
• Transient Suppression: For inductive loads, such as solenoids or relays, integrate an external flyback diode across the load to protect the internal output transistors from back-EMF voltage spikes.