for scu=1:4
    [rx,err,errstr,t]=applycontrol(H,scu,0,[0 0 0]);
    [rx,err,errstr,t]=applycontrol(H,scu,1,[0 0 0]);
    [rx,err,errstr,t]=applycontrol(H,scu,2,[0 0 0]);
    [rx,err,errstr,t]=applycontrol(H,scu,3,[0 0 0]);
end