Reset bits at power up of S7-317T

[Tonk]

Having trouble trying to reset some data bits at power up of the PLC. Want to reset them before I execute OB1 anybody give me any pointers.

 

[L D[AR2P#0.0]]

What trouble are you having ? OB100 executes on plc startup so you should put the resetting of your data in there.

 

[Tonk]

LD I saw in the help menu about OB100 so I tried it out set a couple of data bits then powered down the plc and then powered it back up it didn't appear to reset the data bits not sure what to do next code is as follows in OB100

R DB102.DBX24.5
R DB102.DBX25.5
R DB102.DBX30.1
R DB102.DBX30.3
L 0
T DB102.DBW40
BE

 

[krk]

SET
R Db102.dbx24.5
R Db102.dbx25.5
R Db102.dbx30.1
R Db102.dbx30.3
L 0
T Db102.dbw40

 

[STL???]

Hi, Try

CLR

 = DB102.DBX24.5

 = DB102.DBX25.5

 = DB102.DBX30.1

 = DB102.DBX30.3

 L 0

 T DB102.DBW40

 

[Tonk]

krk/STL either one did what I wanted

Thanks!!!