How to control for whole work?

PLC control, setup safety interlock device between system
◆If the examining door is open, the impeller heads won’t start.
◆If the cover of impeller head is open, the impeller head won’t start.
◆If the impeller heads doesn’t work, the shots valves won’t work.
◆If the separator won’t work, the elevator won’t work.
◆If the elevator won’t work, the screw conveyor won’t work.
◆If the screw conveyor won’t work, the shots valve won’t work.
◆Error warning system on abrasive circle system, any error come, all the above work will stop automatic.