Siemens S7-1200 - Communication with a Programming Device; Establishing the Hardware Communications Connection

Communication
10.2 PROFINET
S7-1200 Programmable controller
550 System Manual, 03/2014, A5E02486680-AG
10.2.3
Communication with a programming device
A CPU can communicate with a STEP 7
programming device on a network.
Consider the following when setting up communications between a CPU and a programming
device:
● Configuration/Setup: Hardware configuration is required.
● No Ethernet switch is required for one-to-one communications; an Ethernet switch is
required for more than two devices in a network.
10.2.3.1
Establishing the hardware communications connection
The PROFINET interfaces establish the physical connections between a programming
device and a CPU. Since Auto-Cross-Over functionality is built into the CPU, either a
standard or crossover Ethernet cable can be used for the interface. An Ethernet switch is not
required to connect a programming device directly to a CPU.
Follow the steps below to create the hardware connection between a programming device
and a CPU:
1. Install the CPU (Page 56).
2. Plug the Ethernet cable into the PROFINET port shown below.
3. Connect the Ethernet cable to the programming device.
①
PROFINET port
An optional strain relief is available to strengthen the PROFINET connection.