S5-95U, SINEC L2 Data Transfer with PLC-to-PLC Connections
The procedures to set and modify parameters in DB1 and to transfer DB1 are described in detail in
section 1.4.
DB1 Parameters for PLC-to-PLC Connections
Table 6-2. DB1 Parameters for PLC-to-PLC Connections
Parameter Argument
Block ID: SL2:
Job number and location of status byte ‘Transmit
Job number and location of status byte ‘Receive’
STBS
STBR
n MBx
n MBy
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SINEC L2
Significance
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Argument Permissible Range
n
MBx
MBy
1 to 31
1 to 254
1 to 253
Explanation
Job number
Flag byte
Flag byte
*
* The next flag byte is reserved as length byte
Example: Two S5-95U are to communicate with each other.
Table 6-3. Assigning Parameters for PLC-to-PLC Connections
156: KS =' SL2: TLN 1 STA AKT';
168: KS =' BDR 500 HSA 10 TRT ';
180: KS ='5120 SET 0 ST 400 ';
192: KS ='SDT 1 12 SDT 2 360 ';
204: KS ='STBS 2 MB10 STBR 2 MB11 ';
.
.
.
156: KS =' SL2: TLN 2 STA AKT';
168: KS =' BDR 500 HSA 10 TRT ';
180: KS ='5120 SET 0 ST 400 ';
192: KS ='SDT 1 12 SDT 2 360 ';
204: KS ='STBS 1 MB21 STBR 1 MB22 ';
DB1 for PLC 1 Explanation
L2 basic parameters (see section 1.4 for
explanation)
Transmitting from station 1 to station 2, STB
‘Transmit’ is in MB10.
Receiving from station 2, STB ‘Receive’ is in
MB11 (MB12 is reserved as length byte)
L2 basic parameter (see section 1.4 for
explanation)
Transmitting from station 2 to station 1, STB
‘Transmit’ is in MB21.
Receiving from station 1, STB ‘Receive’ is in
MB22 (MB23 is reserved as length byte)
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DB1 for PLC 2
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After you have completed assigning the parameters, you have to set up the control program for the
data exchange. The procedure for doing this is discussed in the next sections.
EWA 4NEB 812 6112-02
6-5
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