Technical data
SINAUT TD7 software package for the CPU   
2.8 SFC / SFB system blocks used 
  Software 
328  System Manual, 07/2009, C79000-G8976-C222-07 
Block for setting the CPU to ’STOP’. 
SFC 52 WR_USRMSG 
Block for entering a user message in the diagnostic buffer. 
SFC 64 TIME_TCK 
Block for reading the system time of the CPU. 
SFC 65 X_SEND 
Block for sending data over an unconfigured connection. 
SFC 66 X_RCV 
Block for receiving data over an unconfigured connection. 
Other system blocks only available in 400 CPUs: 
SFC 23 DEL_DB 
Block for online deletion of data blocks. 
SFC 24 TEST_DB 
Block whose uses include determining whether a specific data block is available in the CPU. 
SFC 25 COMPRESS 
Block for online compression of the user memory, for example, after the deletion of a data 
block. 
SFB 12 BSEND 
Block for block-oriented sending of data over a configured connection. 
SFB 13 BRCV 
Block for block-oriented reception of data over a configured connection. 










