Temperature Sensor Modules These temperature sensor units are classified as digital I/O units when considering I/O allocations, and will take digital I/O points from the total allocation for a CJ1M CPU. The number of I/O points is DIP switch selectable as follows: Configured for 1 to 3 inputs takes 48 digital I/O points, configured for 4 inputs takes 64 digital I/O points, and configured for 5 to 6 inputs takes 96 digital I/O points.