The IQ241 controllers are of medium capacity designed for the control of all types of building plant. They can provide a minimum of 12 digital inputs, and 8 analogue voltage outputs. A further 20 I/O points can be made available by using up to 10 S cards, each providing 2 inputs or outputs of the same type (8 input only, 12 input or output). S cards can provide analogue current, analogue voltage, thermistor, or digital inputs, or analogue voltage outputs giving the IQ241 sufficient capability for more complex strategies. It can operate either as a stand alone device or as part of a Building Management System.
