Configuring
4.11 Planning subnets
S7-300, CPU 31xC and CPU 31x: Installation
4-62 Operating Instructions, Edition 08/2004, A5E00105492-05
Information on routing can be found ...
•
CPU Data Reference Manual
for your CPU
• In the
Communication with SIMATIC
manual.
4.11.5 Point-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
Driver
PtP communication drivers installed in those CPUs:
• ASCII drivers
• 3964(R) Protocol
• RK 512 (only CPU 314C-2 PtP)
Devices capable of PtP communication
Devices equipped with a serial port, for example, barcode readers, printers, etc.
Reference
CPU 31xC: Technological functions
manual
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