How to add a timestamp to an event that has to be contained in a 4 byte structure like a LINT or DWORD etc?

Hello ,

Hi, could someone please show me how I would use this code in a S7-400 PLC if that is even possible please?

Basically I am looking for some way to add a timestamp to an event that has to be contained in a 4 byte structure like a LINT or DWORD etc?

Many thanks :-)

 There are 2 ways for SIMATIC S7-400 series :

1. Read date and time of the CPU in case of a positive edge of a bit (event) and save it in a buffer.It is also possible to extract time of day (TOD) out of Date and Time.TOD is a 4-byte structure.You gather all important time stamps in CPU in form of a buffer in a DB.(The following video)
   
   
2. For S7-400 and SIMATIC WinCC , SFB35 performs alarm logging with time stamp .This is a key feature of logging chronological messages.

I hope it helps,

hdhosseini