2 Connecting to SIEMENS PLCs 2-5 Cable Fabrication When Using SIEMENS S7-200 Communication Protocol 2-5 Cable Fabrication RS232 Communication Cable Use RS-232/PPI multi-host cable and self-made RS232 cable manufactured by SIEMENS to communicate with PT. • Self-made RS-232 Cable 2 RS485 Communication Cable RS232 Communication Cable Use MPI-Adapter SSW7, RS232 (Order No.700-751-1VK21) manufactured by Helmholz and RS232 cable to communicate to PT. NB-series Programmable Terminals Host Connection Manual (V108) 2-31 PT (COM1/COM2) RS-232/PPI cable connector D-Sub 9Pin (Female) Signal Pin No. Pin No.
Signal D-Sub 9Pin (Female) SD 2 2 RXD RD 3 3 TXD SG 9 5 GND PT (COM2) PLC D-Sub 9Pin (Female) Signal Pin No. Pin No. Signal D-Sub 9Pin (Female) RDB+ 6 3 D+ RDA- 8 8 D- SG 9 5 GND Terminal R1 4 Terminal R2 5 When Using SIEMENS S7-300/400 (PC Adapter Direct) Communication Protocol PT (COM1/COM2) D-Sub 9Pin (Female) Signal Pin No. SD 2 RD 3 SG 9 MPI-Adapter RS-232 cable connector Pin No. Signal D-Sub 9Pin (Male) 2 RXD 3 TXD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS