CP 523
Using the ”SEND” and ”RECEIVE” Function Blocks
The FB 201 services the Receive request according to the following schematic:
Figure 8-4. Schematic for "Receive Frame" (FB 201)
No
No
Yes
Yes
Acknow-
ledgement
with error?
Parameter-
error?
No
Yes
Data
available?
Read CP 523 status
Check the "RECEIVE" FB parameters
Establish "RECEIVE" connection to the CP 523
Read job acknowledgement from CP 523
Fetch Receive data from CP 523
Flag error in status
byte
END
Store number of DWs received
Segment
2
Segment
3
Segment
4
Segment
5
Segment
6
Segment
6
EWA 4NEB 811 6044-02a
8-23