Siemens SIMATIC S5 CP 523 Manual page 184

CP 523
Store word in DB
END
EWA 4NEB 811 6044-02a
START
Prepare to receive
message block
Read word from the transfer
memory
Word=end-of-
text character?
Store word in DB
Last word of the
message block?
Figure 7-16. Flowchart for FB 126 "RECEIVE 3"
No
No
Yes
Communications Mode
Prepare
transfer of
next word
Prepare
transfer of
next
message
block
7-79