Siemens S7-300 appendix Point to Point PtP, Transmission rate, Drivers

Communication

3.1 Interfaces

3.1.4Point to Point (PtP)

Availability

CPUs with a “PtP“ name suffix are equipped with a PtP X2 interface.

Properties

Using the PtP interface of your CPU, you can connect external devices with serial interface. You can operate such a system at transmission rates up to 19.2 kbps in full duplex mode (RS 422), and up to 38.4 kbps in half duplex mode (RS 485).

Transmission rate

•Half duplex: 38.4 kbps

•Full duplex: 19.2 kbps

Drivers

PtP communication drivers installed in those CPUs:

•ASCII drivers

•3964(R) Protocol

•RK 512 (CPU 314C-2 PtP only)

Devices capable of PtP communication

Devices equipped with a serial port, for example, barcode readers, printers, etc.

Reference

CPU 31xC: Technological functions manual

CPU 31xC and CPU 31x, Technical data	3-5
Manual, Edition 08/2004, A5E00105475-05