Siemens KS7 Series Spezifikationen PDF herunterladen (Seite 217)

100

101

CP 523 Using the ”SEND” and ”RECEIVE” Function Blocks

Yes

NoNo

Yes

Fetch Receive data from CP 523

Segment 6

Buffer number of message blocks given in

acknowledgement and process

Further program preparations

Buffer message frame length given in

acknowledgement and process

Calculate the number of words in the last message

block

Access word 0 on CP

Decrement number of message blocks by 1

Fetch a DW from the CP

Yes

Has the last DW

been received?

Last message

block?

Increment ZLAE by 1

ZANF > Z-DB?

Increment ZLAE by 1

END

Output error message

Last message

block?

Access word 0 on CP

Decrement number of

message blocks by 1

Yes

Last DW of the

message block?

Next DW

Last message

block?

END

EWA 4NEB 811 6044-02a

8-27

1 2 ... 212 213 214 215 216 217 218 219 220 221 222 ... 256 257

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