Siemens NCM S7 appendix Parameters for Specifying a CPU Data Area input parameters

Models: NCM S7

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Programming FCs (Functions) and FBs for S7 Ethernet CPs

6.2.2Parameters for Specifying a CPU Data Area (input parameters)

Specifying the Data Area on the CPU

When you call an FC, you transfer the address and length of the data area on the CPU in which the user data are available or will be stored or which can contain further parameter information.

The ANY pointer data type is used to address this area. For more detailed information on this data type, refer to the STEP 7 online help under the topic “Format of the Parameter Type ANY”. You will also find a detailed description of the ANY point in /21/.

6.2.3Status Information (output parameters)

For status evaluation, the following parameters must be evaluated in the user program:

SDONE or NDR

These parameters (DONE with send jobs and NDR with receive jobs) signal (successful) completion of the job.

SERROR

This indicates that the job could not be executed error-free.

SSTATUS

This parameter supplies detailed information about the execution of the job. Status codes can be returned during execution of the job (DONE=0 and ERROR=0).

Evaluating Status Codes

Remember that the status codes DONE, NDR, ERROR, STATUS are updated at each block call.

Status Codes during CP Startup

With a startup or restart of the Ethernet CP (after activating a switch on the module), the output parameters of the FC are reset as follows:

SDONE = 0

SNDR = 0

SERROR = 0

SSTATUS = 8180H for AG_RECV / AG_LRECV or 8181H for AG_SEND /AG_LSEND

SIMATIC NET NCM S7 for Industrial Ethernet

169

Release 6/2003

C79000–G8976–C129–07

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Siemens NCM S7 appendix Parameters for Specifying a CPU Data Area input parameters, Status Information output parameters

NCM S7 specifications

Siemens NCM S7, which stands for Siemens Network Control Module for the S7 series, represents a significant advancement in industrial automation technology. This robust control system is designed to enhance productivity and efficiency in various manufacturing processes. Its primary purpose is to facilitate seamless communication between field devices and higher-level control systems, ensuring that processes run smoothly and effectively.

One of the main features of the Siemens NCM S7 is its exceptional connectivity. The module is equipped with integrated network capabilities that support various communication protocols such as Ethernet, Profibus, and Profinet. This versatility allows it to work with a wide variety of devices, enabling data exchange across different automation levels. The ability to connect to cloud services is another standout feature, allowing users to access real-time data remotely for monitoring and analytics.

The NCM S7 also boasts advanced data processing capabilities. With powerful processing units, it can execute complex control algorithms and manage large volumes of input and output data in real time. This is essential for industries that require precise control over their processes, such as automotive, food and beverage, and pharmaceuticals. The system’s high-speed memory and processing speed ensure that it can handle demanding tasks without lag.

In terms of technology, the Siemens NCM S7 leverages state-of-the-art cybersecurity features. As industrial control systems increasingly become targets for cyber threats, the NCM S7 incorporates advanced security protocols to safeguard sensitive data and ensure the integrity of the control processes. This includes features such as secure communication channels and user authentication.

Another key characteristic of the NCM S7 is its flexibility. The system can be easily scaled and adapted to meet the specific needs of various applications. Users can increase the number of input/output channels or integrate additional modules without significant downtime. This adaptability makes the NCM S7 an ideal choice for both small-scale operations and large industrial environments.

Moreover, the user-friendly interface simplifies configuration and programming tasks, allowing engineers and technicians to set up and troubleshoot the system with ease. Siemens has also invested in comprehensive support and training resources to help users maximize the system’s potential.

In conclusion, the Siemens NCM S7 stands out as a pivotal element in modern industrial automation. With its robust connectivity, advanced data processing capabilities, cybersecurity features, and flexibility, it empowers businesses to optimize their production processes and embrace the future of Industry 4.0.