Data Transmission Using a Standard Connection S5-95U, SINEC L2
Programmable Controller 1
Proceed as follows:
Assign parameters in DB1 of programmable controller 1 as described in section 4.2.
Program the individual blocks as described in the following section.
Transfer blocks DB1, OB1, DB6, and DB7 to programmable controller 1.
Cyclical Program for Station 1 (Programmable Controller 1)
The following was set in DB1:
• Send mailbox is in DB6 starting with data word DW0.
• Receive mailbox is in DB7 starting with data word DW0.
• Send coordination byte is in flag byte FY62.
• Receive coordination byte is in flag byte FY63.
OB1 for PLC 1 Explanation
NETZWERK 1 0000
0000 :
0001 : JU FB 1
Transmit to station 2.
0002 NAME : L2-STAND
0003 ANST : F 50.0
Transmit trigger bit, has to be set by user program, (is reset
after the transmit job is completed)
0004 ZIEL : KF 2 Station 2
0005 LAEN : KF 4 Frame length of transmit data: 4 bytes
0006 : BE
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FB1 for PLC 1 Explanation
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Netzwerk 1 0000
NAME : L2-STAND
L2 standard connection
BEZ : ANST E/A/D/B/T/Z: E BI/BY/W/D: BI
BEZ : ZIEL E/A/D/B/T/Z: D KM/KH/KY/KS/KF/KT/KC/KG: KF
BEZ : LAEN E/A/D/B/T/Z: D KM/KH/KY/KS/KF/KT/KC/KG: KF
0008 : U F 63.7
If receive mailbox enabled to receive,
0009 : JC = M001 jump to ‘SEND’ program section.
000A : A DB 7 Open receive mailbox data block
000B :
000C : ============================================
000D :
Program section for evaluation of received data
000E :
000F : ============================================
0010 :
0011 : UN F 63.7
CBR bit ”Enable receive”
0012 : S F 63.7 Enable RM to receive
0013 :
4-10
EWA 4NEB 812 6112-02
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