6ES7314-6CH04-0AB0 Siemens Simatic S7-300 CPU 314C-2 DP Compact CPU

Product parameters

CPU core parameters

Processor: 32-bit microprocessor, with a clock frequency of approximately 100MHz.

Memory: Working memory 128KB (for programs and data), loading memory 4MB (supporting SD card expansion).

Instruction execution speed: The fastest bit operation is 0.05μs, the fastest word operation is 0.1μs, and the fastest double-word operation is 0.15μs.

Integrated I/O

Digital input: 16 points, DC 24V, input current 7mA (signal "1"), 1mA (signal "0").

Digital output: 16 points, relay output, load voltage AC 250V/DC 30V, rated current at each point 2A.

Communication interface

One PROFINET interface (RJ45), supporting PROFINET IO controller/device mode, with a transmission rate of 10/100Mbps.

One MPI/DP interface (RS485), supporting MPI communication (rate 187.5kbps) and PROFIBUS DP slave mode (rate up to 12Mbps).

Power supply and size

Power supply voltage: DC 24V (allowable range: DC 19.2-28.8V), typical power consumption: 15W.

Function

Control functions: Supports ladder diagram (LAD), Function block diagram (FBD), and structured control language (SCL) programming, enabling basic controls such as timers, counters, and PID regulation, as well as complex logics like sequential control and process control.

Communication function: Through the PROFINET interface, it can be connected to HMI, other PLCS or industrial Ethernet devices. The MPI/DP interface can be connected to the PROFIBUS DP network, meeting the requirements of multi-device collaborative control.

Integrated I/O advantages: No additional digital modules need to be configured. The 16-input and 16-output integrated I/O can directly connect sensors (such as photoelectric switches) and actuators (such as solenoid valves, indicator lights), simplifying system wiring and reducing costs.

Diagnosis and Maintenance: It is equipped with hardware fault diagnosis and I/O status monitoring functions. The LED indicator lights on the module (power, operation, fault, I/O status) can quickly locate problems and support reading diagnostic information through programming software.

Application scenarios

Small and medium-sized mechanical equipment: Suitable for packaging machines, labeling machines, small production lines and other equipment. Integrated I/O can directly control the sensor signal acquisition and actuator action of the equipment without the need for expansion modules.

In small and medium-sized process control scenarios in industries such as food and beverage and water treatment, parameters like temperature, pressure, and flow can be regulated through the PID function, and data monitoring can be achieved by communicating with the upper computer via PROFINET.

Distributed control substation: As a substation of the PROFIBUS DP or PROFINET network, it receives instructions from the master station and controls local devices. For example, in an automotive parts production line, it is responsible for the action control of individual workstations.

Buildings and infrastructure: It is used for air conditioning control and lighting system management in small buildings, or barrier gate and parking space guidance system control in parking lots. Integrated I/O and communication functions can meet basic automation requirements.

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