Simply an "OR" gate.Code:Input Switch 1 Switch 2 0 0 0 1 1 0 1 0 1 1 1 1
The input would be TRUE as long as either switches/input devices are TRUE.
The input would be FALSE only if both switches/input devices are FALSE.
The above is correct (except you should have said "either input device (or switch)" instead of "either inputs" and "both of the input devices or switches" intead of "both of the inputs". The "input" would refer to a terminal and the electronic input parts of the PLC, and the things that cause the input to react are external devices such as switches and sensors. That might be why it was marked wrong - you did not seem to understand the difference between external devices and the parts of the PLC and program."The input would be true as long as either inputs are true,
however the input would be false only if both of the inputs are false."