Input/Output Modules

All Building Management Systems are made up of points, whether they are physical or not doesn’t really matter, they are all either inputs or outputs in one way or the other.

There are 4 types of IO to be aware of on a building controller, 2 types of inputs and 2 types of output.

• Analogue inputs
• Digital inputs
• Analogue outputs
• Digital outputs

Inputs are points which are not affected by the controller, they are simply read and used if required.