2 Connecting to SIEMENS PLCs 2-2 Communication Parameters and Cable Fabrication 2-2 Communication Parameters and Cable Fabrication 2-2-1 Serial Port 2 2-2-1 Serial Port 2-2-2 Ethernet NB-series Programmable Terminals Host Connection Manual (V108) 2-3 Series CPU Link Module COMM Type Parameter Cable S7-200 CPU222 CPU224 CPU226 CPU224 XP CN CPU226 XP CN RS485 on the CPU unit RS232 Refer to Section 2-3 Self-made cable required RS485 S7-300 CPU312IFM CPU313 CPU313C CPU314 CPU314IFM CPU315 CPU315-2 DP CPU316 CPU316-2 DP CPU318-2 MPI port on the CPU unit RS232 S7-300/400 (PC Adapter Direct) protocol S7-400 CPU412-1 CPU412-2 DP CPU412-3H CPU413-1 CPU413-2 DP CPU414-1 CPU414-2 DP CPU414-3 DP CPU416-1 CPU416-2 DP CPU416-3 DP CPU417-4 MPI port on the CPU unit RS232 S7-300/400 (PC Adapter Direct) protocol Series CPU Link Module COMM Type Parameter Cable S7-200 CPU222 CPU224 CPU226 CPU224 XP CN CPU226 XP CN CP 243-1 CP 243-1 IT - Refer to Section 2-3 Network Cable S7-200 SMART CR40 SR20 Ethernet Port of CPU Unit - S7-300 CPU315-2DP CP 343-1 CP 343-1 IT - CPU315-2 PN/DP CPU317-2 PN/DP CPU319-3 PN/DP Ethernet Port of CPU Unit - S7-1200 CPU1211C CPU1214C Ethernet Port of CPU Unit -