How many owners can a digital output have?

In the context of ControlLogix systems, a digital output can only have one owner at any given time. This is because the output is designed to perform a specific action or control a device based on the command it receives from a single controlling entity, which is referred to as the owner. The owner determines the state of the output, either turning it on or off, and ensures that there is a clear and unambiguous control signal sent to the output device.

If a digital output were to have multiple owners, it could lead to conflicts where different owners try to control the output simultaneously. This could result in unpredictable operation, potential damage to devices, or malfunction in the control system, as outputs may be commanded to conflicting states. Therefore, having a single owner maintains system integrity and predictability in the control process.