Configuring Communication Connections

4.3.4Connections Without Assignment

Overview

This section explains the actions that can lead to a configured connection losing its assignment to the CP or being deleted.

Caution

Remember that in contrast to the S7 connections, the connections of the SEND/RECEIVE interface are assigned a CP-dependent ID. The actions below may require the ID to be modified so that the interface information in the user program must also be adapted.

Table 4-3 Actions That Can Cause Changes to Configured Connections

Action

Consequences for the

How to Establish the Connection

 

Connections

Again

 

 

 

The CP (module) is

The connections are retained.

1. Adapt the module start address

moved to a different

The connection IDs are

LADDR in the user program.

location in the hardware

 

automatically updated.

2. Download the connection

configuration (drag and

 

configuration to the CP again.

drop)

 

 

 

 

 

 

The CP (module) is

The connections remain without

Once you have placed a CP in the

deleted in the hardware

assignment to a CP in the

hardware configuration and networked it:

configuration.

connection table. In the

1. Assign the CP in the connection

 

You receive the message

“Overview” tab of the Properties

properties dialog in the “Addresses”

“CP has n connections;

dialog, the connections are

tab.

the assignment will be lost

or

identified with “!”.

in the connection table”.

 

Reassign the connection using the

 

 

menu option Edit " Connection

 

 

Partner....

 

 

2. Adapt the connection ID in the user

 

 

program.

 

 

3. Download the connection

 

 

configuration to the CP again.

 

 

 

Deleting the SIMATIC S7

All the connections to this station

Reconfigure the station and

station.

are deleted within the project.

connections.

 

 

 

SIMATIC NET NCM S7 for Industrial Ethernet

97

C79000-G8976-C129–06

Page 97
Image 97
Siemens S7 appendix Connections Without Assignment, Assignment to a CP, Menu option Edit Connection, Partner

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.