Siemens SIMATIC CP 440 Manual page 139

Table 9-3
Block
OB 1
OB 100
FB 9
FB10
FC 21
FC 22
FC 23
FC 24
DB 21
DB 22
DB 40
DB 41
DB 42
DB 43
Table 9-4 CP 440 MASTER
Block
OB 1
OB 100
FB 9
FB10
FC 1
FC 2
FC 11
FC 12
FC 21
FC 22
DB 9
DB 10
DB 31
DB 32
DB 41
DB 42
DB 51
Point-to-point connection CP 440 Installation and Parameter Assignment
A5E00057742-02
CP 440 ASCII BCC
Symbol
CYCLE Cyclic program processing
RESTART Cold restart processing
RECV_440 Receive standard FB for data
SEND_440 Send standard FB for data
SEND Send data
RECEIVE Receive data
GEN BCC Creates BCC for the sender
CHK BCC Checks the BCC when data is received
SEND IDB Instance DB for SEND_440 FB
RECV IDB Instance DB for RECV_440 FB
SEND WORK DB Work DB for the standard FB 10
RECV WORK DB Work DB for the standard FB 9
SEND SRC DB Send data block
RECV DST DB Receive data block
Symbol
CYCLE
RESTART
RECV_440
SEND_440
SLAVE01
SLAVE02
SEND SL01
SEND SL01
RECEIVE SL01
RECEIVE SL02
RCV IDB
SEND IDB
SEND WORK DB SL01
SEND WORK DB SL02
RCV WORK DB SL01
RCV WORK DB SL02
SEND SRC DB SL01
Programming Example – Standard Blocks
Comment
Comment
Cyclic program processing
Cold restart processing
Receive standard FB for data
Send standard FB for data
Main program for communication to slave 01
Main program for communication to slave 02
Send data
Send data
Receive data
Receive data
Instance DB for RECV_440 FB
Instance DB for SEND_440 FB
Work DB for the standard FB 10
Work DB for the standard FB 10
Work DB for the standard FB 9
Work DB for the standard FB 9
Send data block
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