Data Transfer with PLC-to-PLC Connections S5-95U, SINEC L2
FB105 for PLC 2
SEGMENT 1
NAME : S 2<=1
Station 2 receives from station 1
DES : EMPF I/Q/D/B/T/Z: I BI/BY/W/D: BI
000A : ON =EMPF
If receiving is not enabled or
000B : ON F 22.0 if STBR bit “Receive viable” is not set,
000C : BEC end here.
000D :
000E : JU FB 253
Call-up of L2-RECEIVE
000F NAME : L2-REC
0010 A-NR : KY 0,1
Receiving from station 1
0011 ZTYP : KS DB Received data are stored in a data block,
0012 DBNR : KY 0,22 DB number is 22,
0013 ZANF : KF +1 starting with data word DW1.
0014 ZLAE : KF -1 “Wildcard length”
0015 : AN F 255.0 If there is no parameter assignment error message
0016 : AN F 22.3 and STBR bit “Job completed with error” is not
0017 : RB =EMPF set, reset enable bit ‘Receive’.
0018 :
0019 : BE
Explanation
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ExplanationDB21 for PLC 2
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0: KY = 000,000; Send area to PLC 1 Bytes 1 +2
1: KY = 000,000; Send area to PLC 1 Bytes 3 +4
2: KY = 000,000; Send area to PLC 1 Bytes 5 +6
3: KH = 0000;
DB22 for PLC 2 Explanation
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0: KH = 0000;
1: KY = 000,000;
Receive area from PLC 1 Bytes 1+2
2: KY = 000,000; Receive area from PLC 1 Bytes 3+4
3: KY = 000,000; Receive area from PLC 1 Bytes 5+6
.
.
.
Switch both programmable controllers from STOP to RUN.
Check the data transmission. This is done best with a programmer: Connect each programm-
able controller to a programmer and display the data blocks, the status bytes, and the parameter
assignment error byte.
Refer also to section 3.3 “Starting up a System”.
Appendix E gives you information on cycle delay times in the programmable controllers due to data
transmission.
6-12
EWA 4NEB 812 6112-02
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