Configuring Communication Connections

Attributes

Description

Access

 

 

 

Local Endpoint

 

 

 

 

 

ID

The entry is identical to the Local ID parameter in the connection list.

Selectable

 

 

 

Name

When you create the connection, a name is proposed here along

Modifiable

 

with a connection number as suffix.

 

 

With unspecified connections, use this box to identify the partner.

 

 

 

 

Via CP

If the station contains more than one CP of the same type connected

Display only

 

to the same subnet, you can select the connection route. –> “Route”

 

 

button see Section 4.8.

 

 

If no CP is assigned (for example because the CP was previously

 

 

deleted) “none” is displayed here.

 

 

 

 

Active Connection

With this option, you specify whether the connection is established by

Modifiable

Establishment

this S7 station. This is the default setting when the address of the

 

 

partner is specified.

 

 

ON: the connection is established actively.

 

 

OFF: the connection is established by the partner.

 

 

If you selected partner “unspecified” when you created the

 

 

connection, the option is deselected as default. If you activate the

 

 

option, you must also specify the address of the partner in the

 

 

“Addresses” tab.

 

 

Note:

 

 

Please note the effects on the mode. If you want to use the FETCH

 

 

or WRITE mode (refer to the ”Options” tab), the mode must be set to

 

 

”Passive”.

 

 

 

 

Block Parameters

 

 

 

 

 

ID

This value must be entered as a block call parameter ID for calling

Display only

 

the FC in the user program to identify the connection. The ID

 

 

changes if the local ID is changed.

 

 

 

 

LADDR

This value must be entered as a block call parameter ID for calling

Display only

 

the FC in the user program to identify the connection.

 

 

 

 

Connection Name (Reference) – Only in Multiproject

If you create a connection to a partner in another project, that has not yet been merged with the current multiproject, you must enter a connection name as reference. Interproject connections can then be joined up based on this reference. As soon as the connections have been brought together, the connection name (reference) can no longer be entered.

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Siemens S7 Connection Name Reference Only in Multiproject, Attributes Description Access Local Endpoint, Block Parameters

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.