PROFIBUS Interface 1 × 9-pin Sub-D female socket (RS485 electrical standard)
Transmission Rate 9.6 kbit/s ~ 12 Mbit/s (all standard PROFIBUS baudrates supported)
Power Interface 4-pin screw terminal block for external 24V DC supply
Backplane Bus S7-300 U-backplane bus, 5V DC internal power
Max Modules per S7-300 CPU 4 units of CP342-5
Max Open Communication Connections 16 connections via SEND/RECEIVE function blocks
Single Frame Data Length Max 240 bytes per communication frame
