S7-200,PID auto tune from HMI

falgunvasava

Member
Join Date
Jan 2009
Location
gujarat
Posts
60
hi everyone
i have cpu 224-Xp and tp177b pn/dp color.
my customer wants to autotune the pid form HMI.
i have defined the table as given in the help.
the PID responds to the changes made in the KC,Ti and TD but autotune is not happening.the customer want to see the suggested value overwritten to those set initially.however i am getting good control with the values set manually.
i have defined all the in parameters in the table as per the limits specified when i set the start autotune bit, there is no responce,no error code ,no autotune runnig status,nothing.
If anyone has worked with it please help me.
 

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