Up to 35 workstations using a K70 Touch Button Node can have a single andon, call for parts, pallet pickup, etc. Twelve Direct Select Operator Interfaces can be used to respond to requests; each device can be placed on a forklift/Hi-Lo. The system can be expanded to allow for up to 20 Direct Select Operator Interfaces. Count the number of times each station sends a request and the number of times each forklift/Hi-Lo responds to a request.