What mechanism does the Siemens S7-1200 CPU cycle work by?

Create Date: 2024-8-30 12:03:23|Source: Siemens/Siemens

The S7-1200 CPU cycles according to the following mechanism:
What mechanism does the Siemens S7-1200 CPU cycle work by?

1. Write the output value from the process image output area to the physical output

2. Read the physical input before the user program is executed, and save the input value to the process image input area

3. Execute the user program, perform logical operations, and update the output value in the process image output area

As long as the CPU is running, the above steps are performed over and over again. Communication requests are processed periodically during scans, which can interrupt the execution of the user's program. The third step is to perform the self-test diagnosis after the program cycle OB is executed. An interrupt can occur at any stage of the scan cycle, interrupting the execution of the user's program and invoking the OB that handles the interrupt event.

The above three steps are the software processing process of the S7-1200 CPU, which can be considered as the program scan time.

More on that
Daimler Trucks and Siemens have partnered to build a digital integrated engineering platform Daimler Trucks and Siemens have partnered to build a digital integrated engineering platform

Siemens Digital Industries and Daimler Trucks have announced a new collaboration to leverage Siemens Xcelerator industrial software and services portfolio to build an advanced digital engineering pipeline. The channel will enable Daimler Trucks to explore the innovations of commercial vehicles.

Common solutions for Siemens G120 inverter F08502 faults Common solutions for Siemens G120 inverter F08502 faults

1 Check whether there is EMC interference in the inverter or network cable To ensure that the inverter is firmly grounded, the grounding resistance of the inverter is generally required to be less than 4 ohms. Industrial-grade shielded network cables and network cable connectors are used The shielding layer of the network cable should be firmly grounded, and the shielding of the more ambitious ...

Siemens will acquire FORAN entirely Siemens will acquire FORAN entirely

Siemens will fully acquire POLLAN in October 2021 to enhance its marine planning and engineering capabilities. The FORAN business will then be integrated into the Xcelerator channel, which Siemens has been promoting in recent years. With the acquisition of FORAN, Siemens will provide the shipbuilding industry with a comprehensive software and ...

Siemens introduces a new generation of industrial Ethernet switches Siemens introduces a new generation of industrial Ethernet switches

At SPS 2022 in Nuremberg, Siemens introduced the new generation of Scalance XC-/XR-300 series Industrial Ethernet switches. With the increasing number of machines, controls and IT systems connected to the network in industrial production, the network at the production level is also ...

Siemens is investing 600 million euros in an industrial and technological center in Berlin Siemens is investing 600 million euros in an industrial and technological center in Berlin

Sept. 16 (Reuters) -- Siemens returned to its headquarters in Berlin on Wednesday to announce plans to invest 600 million euros ($681 million) in an industrial and technological center in Germany's capital. This investment will contribute to the creation of a new Siemensstadt in the Berlin area, the predecessor of Siemens ...

Siemens 3RW44 Causes of Failure of 95, 96, 98 Soft Starter Siemens 3RW44 Causes of Failure of 95, 96, 98 Soft Starter

The 95, 96, and 98 of the 3RW44 soft starter are comprehensive faults, what causes it to act? 95, 96, 98 are normally open and normally closed comprehensive fault contacts with common points, 95 are common points, 95/96 are normally closed contacts, and 95/98 are normally open contacts. When a fault occurs, it causes the contact ...

Activation of the friction characteristic curve of the SINAMICS G120 frequency inverter Activation of the friction characteristic curve of the SINAMICS G120 frequency inverter

In many uses, such as geared motors or conveyor belts, the collision torques of the load cannot be ignored. SINAMICS G120 frequency inverter provides a way to feed forward the torque setpoint with collision torque under the condition of a speed controller. Feedforward control reduces the speed of the over...

Siemens brought innovative fire protection products to the 19th China International Fire Protection Exhibition Siemens brought innovative fire protection products to the 19th China International Fire Protection Exhibition

With the theme of "Perfect Space, Safety First", Siemens participated in the 19th China World Fire Equipment Skills Exchange Expo (China World Fire Protection Exhibition), showing a full range of fire explorers, emergency dispersion and lighting systems, intact subsystem solutions, and wine ...

Siemens' CIIE kicks off the acceleration of digitalization and decarbonization Siemens' CIIE kicks off the acceleration of digitalization and decarbonization

At the 5th CIIE to be held on November 5-10, Siemens will once again bring a luxury formation to the first release and display of a variety of innovative channels and services. In the past five years, from the innovative display of product skills, the landing of career plans, to the stimulation of channels and services, the exhibition of product skills, the unveiling of career plans, and the promotion of channels and services.

Upload user files to a Siemens memory card Upload user files to a Siemens memory card

Upload user files to the memory card   Step 1: Follow the above method to set the memory card to "Program Card" mode. Customers are advised to clear all files from the memory card before doing this. Step 2: Set the boot state of the CPU. Right-click the CPU in the Project Tree and select ...

What can cause the S7-1200 CPU to fail to boot What can cause the S7-1200 CPU to fail to boot

The S7-1200 CPU will not boot after powering off in the following situations: Some errors detected prevent the CPU from entering RUN mode; In "CPU Properties-General-Startup" set to not reboot (keep it in STOP mode); Warm start ...

A few points of Siemens 1500, 1200 motion control summary 1500T and ordinary 1500CPU A few points of Siemens 1500, 1200 motion control summary 1500T and ordinary 1500CPU

With the update of Siemens 1500 CPU firmware version, the function of motion is getting stronger and stronger, this article takes the firmware version of V2.5 and above as the foundation, and briefly summarizes a few questions. First of all, the 1500T is fully compatible with all the functions of the 1500CPU. T CPU is the base of the general CPU to enhance the movement ...

The Siemens soft starter 3RW44 can self-reset and can fail The Siemens soft starter 3RW44 can self-reset and can fail

Not all faults can achieve self-reset, and the faults that can achieve self-reset are as follows, (the method of self-reset is to set the corresponding parameters in the menu of the LCD display): 1) The motor thermal model is overloaded. The way to achieve self-reset is to select "Settings" -> "Response..." -> "Thermal ...

Overview of the Siemens SINAMICS G120 frequency inverter Overview of the Siemens SINAMICS G120 frequency inverter

Whether pumping, ventilation, compression, movement or process machining: SINAMICS G120 is a universal drive that meets a wide range of requirements. It has clear advantages in general mechanical engineering as well as in the automotive, textile and packaging industries. Its modular design and its range from 0.55 kW to 250 k ...

Siemens won the 2021 "Together, Together, Together" award Siemens won the 2021 "Together, Together, Together" award

At the 2021 "Together, Together, Together" award ceremony hosted by the Germany Chamber of Commerce in China, Siemens once again won praise for "leading the way to building a sustainable supply chain". Siemens has previously pledged to reduce emissions in its global supply chain by 20% by 2030 and by 2050 to achieve ...

How to remove the IP address with a SIMATIC MC memory card and reset the S7-1200 to factory settings How to remove the IP address with a SIMATIC MC memory card and reset the S7-1200 to factory settings

You can reset your S7-1200 to factory settings using an empty SIMATIC MC memory card. illustrate Even if you don't have SIMATIC STEP 7 Basic software and don't know the IP address, you can use the SIMATIC MC memory card to delete the IP address and put the S7-1 ...

How to use a Siemens memory card to wipe the password or do a factory reset How to use a Siemens memory card to wipe the password or do a factory reset

If the customer forgets the password that was previously set to the S7-1200, the program and password inside the S7-1200 cannot be erased by "Factory Reset", so the only way to clear it is to use the memory card. The detailed steps are as follows: 1. Use a memory card, insert it in a computer card reader, ...

Siemens introduces the Symphony Pro platform Siemens introduces the Symphony Pro platform

Siemens Digital Industries Software recently launched the Symphony™ Pro channel, which further expands the functionality of the original Symphony mixed-signal verification capabilities to support the new Accellera standardized verification methodology with a comprehensive and intuitive visual debugging integration environment.

Update the firmware version of your S7-1200 CPU with a 24M memory card Update the firmware version of your S7-1200 CPU with a 24M memory card

1. Use your computer to erase the contents of the memory card through a card reader. Note: Do not format the memory card! 2. Download the latest version of the firmware file from the official website of Siemens. After downloading and unzipping, you can get a "S7_JOB.SYS" file and a "FWUOPDATE. S7S ...

Siemens PLC products - S7 series Siemens PLC products - S7 series

S7 series products include LOGO, S7-200, S7-1200, S7-300, S7-400, S7-1500 and other series, of which the SI-200 series also has a derivative product S7-200 SMART. The LOGO and S7-200 series have basically been eliminated, and the S7-300 and S7-400 Siemens were the main ones before 2010.

CATEGORIES BYPASS
Customer Service Center

Online Consultation:QQ


ContactContact

Contact: Manager Huang

Contact QQ: 3271883383

Contact number: 13522565663


Scan the code to add WeChat (please save the picture first on the mobile phone)

working hoursworking hours

Weekdays: 9:00-17:00

Holidays: Only emergencies are handled

Contact us

Contact us

Contact number QQ consultation
QQ consultation

3271883383

Company address
Back to top