S5-95U, SINEC L2 Data Transfer with PLC-to-PLC Connections
FB5 for PLC 2 Explanation
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SEGMENT 1 0000
NAME : S 2=>1
Transmitting from station 2 to station 1
DES : ANST I/Q/D/B/T/Z: I BI/BY/W/D: BI
0009 :
Edge evaluation
000A : “Job completed without error” via
000B : STBS = flag byte FY21
000C : A F 21.2 STBS bit “Job completed without error”
000D : AN F 42.0 Edge auxiliary flag
000E : = F 42.1 Edge flag “Job completed”
000F :
0010 : A F 21.2
If “Job completed without error”,
0011 : = F 42.0 set edge auxiliary flag.
0012 :
0013 : A F 42.1
If “Job completed“ and
0014 : AN F 42.7 no parameter assignment error is present,
0015 : RB =ANST reset send initiating bit,
0016 : R F 42.5 reset send disabling bit.
0017 :
0018 : A =ANST
If send initiating bit is set and
0019 : AN F 42.5 send disabling bit is not set,
001A : R F 42.0 reset edge auxiliary flag.
001B :
001C : JC FB 252
Call-up of FB L2-SEND
001D NAME : L2-SEND
001E A-NR : KY 0,1 Send to station 1
001F QTYP : KC DB Send data are stored in a data block,
0020 DBNR : KY 0,21 DB number is 21,
0021 QANF : KF + 0 starting with data word DW0.
0022 QLAE : KF + 3 Three words are to be sent (DW0 to DW2).
0023 : A F 255.0 Note parameter assignment error message.
0024 : = F 42.7
0025 :
0026 : A F 21.1
If STBS bit “Job in progress” is set,
0027 : = F 42.5 set send disabling bit.
0028 :
0029 : BE
EWA 4NEB 812 6112-02
6-11
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