Honeywell 900S50 - 0460 I / O Scanner for remote rack , Industrial Automation The I/O Scanner 1 module resides in a remote I/O rack along with the I/O modules. The Scanner 1 and the controller are connected to each other’s I/O port (see the photo on the right side of this page). The scanner collects data from the Input modules populated in its remote rack and communicates the information to the controller. Output data is sent from the controller to the Scanner 1 module which
