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15. SIEMENS PLC 5-91
Connection to PLCs
S5, S5 V4 (S5-115U, S5-135U, S5-155U, S7-300, S7-400)
S5 PG port
Communication parameters are automatically set.
S7-200PPI
S7-300MPI (HMI ADP), S7-300MPI (PC ADP)
• Set [MPI SETTING] in the [Comm. Parameter] dialog of the V-SFT editor.
Set different numbers for [Source No.] and [Local No.], and make sure that [Source No]
≤ [Node Cnt].
[Node Cnt] is equivalent to [Local No.] of the PLC. (For example, if [Local No.] is “13,”
[Node Cnt] is “15.”)
Item Setting on PLC V7 Comm. Parameter Setting
Baud rate 9600 bps 9600 bps
Parity − Even (fixed)
Transmission code
Data length − 8 (fixed)
Stop bit − 1 (fixed)
Item Setting on PLC V7 Comm. Parameter Setting
Baud rate 9600 bps 9600 bps
Port 2 2
Parity Even (fixed) −
Item Setting on PLC V7 Comm. Parameter Setting
Baud rate 38400 bps
HMI ADP 38400 bps (fixed)
PC ADP 38400 bps
Parity − Odd (fixed)
Transmission code
Data length − 8 (fixed)
Stop bit − 1 (fixed)
Local No. (PLC port number) 2 2
Item MPI SETTING
Node Cnt 15/31/63/126
Source No. (V7 port number) 0