%Locate Your OPC Server
hostInfo = opcserverinfo('localhost')

%Show all servers:
allServers = hostInfo.ServerID'

%Create an OPC Data Access Client Object
da = opcda('localhost', 'National Instruments.OPCFieldPoint')

%Connect client object to OPC server:
connect(da)

%Create an OPC Data Access Group Object
Group1 = addgroup(da)

%Browse the Server Namespace
opcitems = serveritems(da, '**')

%Add OPC Data Access Items to the group named Group1
aninn0 = additem(Group1, 'FP Res\FP-TB-10 @1\Tacho_kanal0')
anut0 = additem(Group1, 'FP Res\FP-TB-10 @1\Styresignal_kanal4');

%Reading Data from an Item
r=read(aninn0)

%To get the Value of the first (and here: only) record of the structured
%array r:
r(1).Value

%Writing Data to an Item
write(anut0, 5)

%Cleaning up after the session:
disconnect(da)
delete(da)