24. Siemens PLC 24-1
24. Siemens PLC
Available PLCs
*1 When using the 6ES5 734-1BD20 cable made by SIEMENS, connect the cable shown in [Wiring Diagram 3] to
the D-sub 25-pin side of the 6ES5 734-1BD20 cable for communications with the V7 series.
*2 135U/921 not supported
Communication Setting
The recommended communication parameter settings of the PLC and the V7 series are as follows:
S5, S5 V4 (S5-90U, S5-95U, S5-100U)
Select PLC Type PLC Unit/Port Connection
S5
(S5 V4)
S5-90U
S5-95U
S5-100U
CP-521SI
(3964R Transmission Protocol)
RS-232C [Wiring Diagram 1]
S5-115U
S5-135U
S5-155U
CP-524 (3964R/RK512)
CP-544 (3964R/RK512)
RS-232C [Wiring Diagram 1]
RS-422 [Wiring Diagram 6]
S5-95U
Second serial interface
(3964R Transmission Protocol)
SIEMENS’s
6ES5 734-1BD20 cable
*1
+
RS-232C [Wiring Diagram 3]
S5 PG port S5 series
Programming port on the CPU unit
*2
S7
S7-300 CP-341 (3964R/RK512)
RS-232C [Wiring Diagram 2]
RS-422 [Wiring Diagram 6]
S7-400 CP-441 (3964R/RK512)
S7-200 PPI S7-200 series PPI
RS-422 [Wiring Diagram 7]
S7-300/400MPI S7-300/400 series MPI port
RS-422 [Wiring Diagram 9]
S7-300MPI
(HMI ADP)
S7-300/400 series
(MPI port)
SIEMENS’s
HMI Adapter
6ES7 972 0CA11-0XA0
RS-232C [Wiring Diagram 5]
S7-300MPI
(PC ADP)
SIEMENS’s
PC Adapter
6ES7 9720CA23-0XA0
S7-300MPI
(Helmholz SSW7 ADP)
Helmholz’s
Adapter fur MPI-Bus SSW7
TI500/505
(TI500/505V4)
TI545/555 CPU port (bulit-in)
RS-232C [Wiring Diagram 4]
RS-422 [Wiring Diagram 8]
Item Setting on PLC V7 Comm. Parameter Setting
Baud rate 9600 bps 9600 bps
Parity Even parity Even
Transmission
code
Data length 8 8
Stop bit 1 1
Busy signal NO (fixed) −
Hand shake OFF (fixed) −
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