Communication via Ethernet CPs in S7 Stations

1.3.1PG Communication with STEP 7 over Industrial Ethernet

Requirements for PG Communication

PG communication is possible when the following requirements are met:

SAn Ethernet CP is installed in the PG or engineering station or there is a modem/ISDN interface for remote access.

SThe Ethernet CP must have an address (default MAC address or set the IP address).

Networking the PG / Engineering Station

Depending on the configuration of the PG or Engineering Station, the following two situations are possible when using PG communication:

SPG / Engineering Station in the Configured Mode

If you select this configuration when you commission the PG / engineering station, the interfaces of the communication modules you are using are already known. The option in “Set PG/PC Interface” is automatically set to “PC-internal”.

Once you have downloaded this configuration to your PG / engineering station, you can exchange PG functions with the accessible nodes in the network with STEP 7 without requiring any further settings.

SPG / Engineering Station in PG Operation

If your PG or engineering station is configured for this mode, you must specify the interface on the PG or engineering station explicitly with “Set PG/PC Interface”.

Follow the steps outlined below:

1.Open the “Set PG/PC Interface” dialog box in the Windows Control Panel.

2.Set the PG/PC interface according to the CPs available on your PG and according to the bus attachment (interface parameter assignment used).

For more detailed information on the topic of PG operation and engineering station, refer to /4/.

SIMATIC NET NCM S7 for Industrial Ethernet

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Siemens S7 appendix PG Communication with over Industrial Ethernet, Requirements for PG Communication

S7 specifications

The Siemens S7 series represents a cornerstone in the realm of programmable logic controllers (PLCs), developed by Siemens, a leading company in industrial automation. Widely used across various industries, the S7 series offers robust solutions for controlling machinery and processes, thanks to its reliable performance, flexibility, and scalable architecture.

One of the key features of Siemens S7 PLCs is the modularity of their design. Each system can be configured to meet specific application requirements due to the ability to mix various input/output modules, CPUs, and communication processors. This modular approach allows for the customization of systems to suit diverse automation tasks, providing end users with the adaptability required for modern manufacturing environments.

The S7 series encompasses several models, including the S7-1200, S7-300, and S7-1500. The S7-1200 is particularly suited for small to medium-sized applications, offering a compact design and integrated communication interfaces. In contrast, the S7-300 is designed for more extensive and complex control systems, making it ideal for large-scale industrial applications. The S7-1500 stands out with its advanced performance metrics, rich feature set, and high-speed processing capabilities, making it perfect for demanding applications that require real-time control and extensive data handling.

Siemens also emphasizes the importance of communication technologies within the S7 series. With options such as PROFINET, PROFIBUS, and EtherNet/IP, the S7 PLCs can seamlessly integrate into existing automation infrastructures, ensuring smooth data exchange between devices. The incorporation of web-based technologies and cloud connectivity further enables remote monitoring and control of systems, enhancing operational efficiency.

Another notable characteristic of Siemens S7 PLCs is the use of TIA Portal (Totally Integrated Automation Portal), an innovative software platform that simplifies the engineering process. TIA Portal allows users to program, configure, and diagnose their automation devices in a single environment, reducing setup times and improving productivity.

In conclusion, the Siemens S7 series stands out due to its modular design, range of models suitable for various applications, advanced communication technologies, and user-friendly programming software. This combination of features and characteristics makes S7 PLCs a preferred choice for industries seeking reliable and efficient automation solutions. As industrial demands continue to evolve, Siemens S7 PLCs remain at the forefront, adapting to technological advancements and setting benchmarks in the automation field.