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General| Processor family | SIMATIC S7-300 |
|---|---|
| Digital Inputs (DI) | 24 |
| Digital Outputs (DO) | 16 |
| DP interface | Yes |
| Operating voltage | 24 V DC |
| Temperature range | 0 to 60 °C |
| Number of DP masters | 1 |
| Number of frequency meters | 4 |
| Type | CPU |
| Interface | MPI/DP |
| Integrated Functions | PID control, Counting |
| Communication | Profibus DP, MPI |
| Programming Languages | LAD, FBD, STL |
| Analog Outputs (AO) | 2 AO, Voltage/Current |
| Communication ports | MPI/DP |
Describes the physical elements and indicators on the CPUs.
Covers communication interfaces and services for the CPUs.
Explains the CPU's memory organization and functions.
Details timing aspects like cycle and response times.
Provides detailed technical specifications for CPU 31xC models.
Provides detailed technical specifications for CPU 31x models.
Details the physical elements and indicators on the CPU 31xC.
Illustrates the integrated digital and analog I/Os of the CPU 31xC.
Explains the meaning and behavior of the status and error LEDs on the CPU 31xC.
Details the physical elements and indicators on CPU 312, 314, and 315-2 DP.
Explains the function and requirements of the MMC slot for CPU operation.
Details the physical elements and indicators on CPU 317-2 DP.
Details the physical elements and indicators on CPU 31x-2 PN/DP.
Details the physical elements and indicators on CPU 319-3 PN/DP.
Explains the general status and error indicators on CPU 31x models.
Identifies and lists the key physical components of the CPU.
Details the function and positions of the CPU mode selector switch.
Details the bus error indicators for different CPU 31x interfaces.
Covers the communication interfaces available on the CPUs.
Details the PROFIBUS DP interface, its availability, operating modes, and properties.
Explains the PROFINET interface, its availability, and connection options.
Provides an overview of the communication services offered by the CPUs.
Tables summarizing communication services, functionality, and availability.
Explains S7 communication, distinguishing between server and client modes.
Explains routing functionality for accessing S7 stations across subnets.
Introduces PROFINET as an enhancement of PROFIBUS DP and Industrial Ethernet.
Describes the functions and connections within a PROFINET IO system.
Details open communication capabilities over Industrial Ethernet and supported protocols.
Explains S7 connections as a communication path.
Details methods for allocating S7 connections on communication modules.
Details the distribution and availability of S7 connection resources.
Provides a table showing the availability of connection resources for different CPUs.
Defines and explains the DPV1 functionality and its availability.
Describes the three main memory areas within the CPU.
Discusses the retentive nature of memory across power cycles and restarts.
Shows the retentive behavior of memory objects across different operating states.
Explains the I/O process image and its advantages over direct I/O access.
Details the properties and functions of the SIMATIC Micro Memory Card.
Covers various memory operations like loading, deleting, and managing blocks.
Describes the process of downloading the user program from the MMC to the CPU.
Details the CPU memory reset procedure and its effect on restart.
Explains how to save and retrieve project data using the MMC.
Describes the process image used for consistent I/O signal access.
Lists factors that can extend the cycle time of a user program.
Explains how to calculate cycle time and provides data for process image transfer.
Details configured communication load for PG/OP, S7, and PROFINET CBA.
Defines response time as the interval between input signal detection and output change.
Explains the conditions for shortest response time and provides a calculation formula.
Details the conditions for longest response time and its calculation.
Provides a step-by-step method for calculating the cycle time.
Provides a step-by-step method for calculating the cycle time.
Provides a method for calculating response times based on shortest and longest times.
Defines interrupt response time and factors affecting it.
Lists the interrupt response times for various CPUs.
Provides formulas to calculate minimum and maximum interrupt reaction times.
Demonstrates cycle time calculation based on specific hardware and user program data.
Demonstrates calculation of process interrupt response time with specific parameters.
Provides comprehensive technical data for the CPU 312C.
Provides comprehensive technical data for the CPU 313C.
Provides comprehensive technical data for CPU 313C-2 PtP and CPU 313C-2 DP.
Provides comprehensive technical data for CPU 314C-2 PtP and CPU 314C-2 DP.
Covers specifications for the integrated digital and analog I/O modules.
Provides pin-out details for integrated DI/DO on specific CPU models.
Details wiring diagrams for analog current/voltage inputs.
Provides specifications for digital inputs of CPUs 31xC, including module-specific data and cable length.
Details specifications for digital outputs of CPUs 31xC, including module-specific data and current ratings.
Provides specifications for analog inputs of CPUs 31xC.
Provides specifications for analog outputs of CPUs 31xC.
Provides comprehensive technical data for the CPU 312.
Provides comprehensive technical data for the CPU 314.
Provides comprehensive technical data for the CPU 315-2 DP.
Provides comprehensive technical data for the CPU 315-2 PN/DP.
Provides comprehensive technical data for the CPU 317-2 DP.
Provides comprehensive technical data for the CPU 317-2 PN/DP.
Provides comprehensive technical data for the CPU 319-3 PN/DP.
