Actwin PID for Hitachi EH150 PLC

Hello,

Is there any PID Block that i can use in Actwin PID for Hitachi EH150 PLC for EH-CPU308A??

I also found the following function format under the Code Box...
FUN0 (s) = PIDIT == PID Operation initialization
FUN1 (s) = PIDOP == PID Operation execution control
FUN2 (s) = PIDCL == PID Operation Execution

But i have no idea on how to use it????
Is there anyone can help me or give me some idea on this???

Many Thanks