Further information
For more information about the SFBs, see:
● Reference manual "System Software for S7-300/400, System and Standard Functions"
● In the STEP7 online help
Byte arrangements
When data longer than one byte is stored, the bytes are arranged as follows ("big endian"):
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
Diagnostics / service
8.5 Diagnostics with data sets
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