Siemens SIMATIC S5 CP 523 Manual page 225

CP 523
STL FB 201
011E :
011F :JU =END
0120 :
0121 KEND :
0122 :L FW 230
0123 :ADD KF +1
0125 :T FW 230
0126 :
0127 :L FW 236
0128 :ADD KF +1
012A :T FW 236
012B :
012C :L FW 232
012D :D
012E :<=F
012F :JC =JUM1
0130 :
0131 :L KH 0058
0133 :T FY 254
0134 :
0135 :
0136 ENTL :
0137 :L FW 238
0138 :L KB 0
0139 :!=F
013A :JC =END
013B :
013C :L KH 0000
013E :DO FW 242
013F :T PY
0140 :L FW 242
0141 :I
0142 :T FW 242
0143 :L KH 0000
0145 :DO FW 242
0146 :T PY
0147 :L FW 242
0148 :D
0149 :T FW 242
014A :
014B :L FW 238
014C :D
014D :T FW 238
014E :
014F :JU =ENTL
EWA 4NEB 811 6044-02a
1
0
1
0
1
1
Using the "SEND" and "RECEIVE" Function Blocks
Explanations
Increment ZLAE register by 1
and store
Increment ZANF register by 1
and store
ZANF register >DB length?
"N O"
Buffer "Z-DB too small for total
Receive data" error message
Last message block?
"Y E S"-->END
Access word 0 on CP 523
for transferring a message block
Set pointer to base address
Decrement message block
counter register by 1 and store
Empty Receive mailbox loop
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