OR Block

Logical OR gate - at least one input must be 1 (true) for output to be 1

# OR Gate Block

Overview

The OR gate implements logical OR operation. Output is 1 (true) if ANY input is 1 (true).

Truth Table (2 inputs)

| Input 1 | Input 2 | Output | | ------- | ------- | ------ | | 0 | 0 | 0 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 1 |

Parameters

Number of Inputs

Number of inputs to the OR gate (2-10).

Default: 2

Logic

• Inputs >= 0.5 are TRUE
• Inputs < 0.5 are FALSE
• Output = 1 if ANY input is TRUE, else 0

Typical Applications

• Alarm conditions (trigger if any sensor activates)
• Fault detection (stop if any error occurs)
• Permission combining (allow if any privilege granted)
• Mode transitions (enter mode if any activation signal received)

See Also

• AND: All inputs true → output true
• XOR: Odd number true → output true
• NOT: Inverts input