Siemens KS7 Series Especificações descarregar pdf (Página 220)

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

STL FB 201 Explanations

0039 :JC =NEIN

003A :

Load STAT bit ”Data available” and

003B :L KH 0001 jump to 'output STAT'

003D :JU =STAT

003E NEIN :

STAT bit ”No data”

003F :L KH 0000

0041 STAT :

Output STAT bit

0042 :T =STAT

0043 :

0044 :L =KBE

Reset KBE.7 (Request

0045 :L KH 007F accepted) but do not

0047 :AW reset error flags

0048 :T =KBE

0049 :

RLO ”0” at jump?

004A :AN F 255.0 or no data available?

004B :ON F 254.7 Program ”End”

004C :BEC

004D :

004E :***

NETWORK 3 004F

004F :

Check whether Z-DB is available

0050 :LW =Z-DB Load Z-DB parameter

0051 :SLW 8 Isolate the DB number from

0052 :SRW 7 the Z-DB parameter specification

0053 :

0054 :L KH E400

Calculate the start address

0056 :+F of the Z DB using the

0057 :LIR 0 block address list

0058 :

0059 :L KB 0

Z-DB available?

005A :!=F

005B :JC =FE04

”E R R O R”

005C :

005D :TAK

Calculate length of the Z-DB

005E :ADD KF -2

0060 :LIR 0

Gross length in words

0061 :ADD KF -5 Subtract length of block header

0063 :T FW 232 and store

0064 :

0065 :LW =ZANF

Check ZANF information

0066 :L KB 0 ZANF less than 0?

0067 :<F

0068 :JC =FE04

”E R R O R”

8-30

EWA 4NEB 811 6044-02a

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