6ES7288-1ST30-0AA1 Siemens SIMATIC S7-200 SMART CPU ST30 Standard CPU

Product parameters

Power supply parameters: The power input is DC 20.4-28.8V; The maximum output of the sensor power supply is 300mA (24V DC), and the maximum output of the backplane bus (5V DC) is 1.4A. The maximum power consumption is 14W.

Storage parameters: Program/data memory capacity 25KB, supports microSDHC card expansion storage; Integrated maintenance-free real-time clock (RTC), with a buffer duration of 7 days, a maximum daily deviation of 120 seconds at 25℃, and data retention function can be set through system blocks, with a maximum retention time of 200 days.

Computing performance: Typical processing time for bit operations is 150ns, for word operations 1.2μs, and for floating-point operations 3.6μs. It is equipped with 6 high-speed counters (HSCS), including 5 single-phase 200kHz and 1 single-phase 30kHz, or 3 A/B phase 100kHz and 1 A/B phase 20kHz.

I/O parameters: 18 channels of 24V DC digital input and 12 channels of 24V DC digital output on board. The digital input supports source type/drain type. Signal "0" corresponds to ≤5V DC (1mA), signal "1" corresponds to ≥15V DC (2.5mA), and the input delay is 0.2-12.8ms (parameterizable). The maximum load current of the digital output is 2A, and the switching frequency supports high-frequency control requirements.

Interface parameters: 1 PROFINET industrial Ethernet interface (RJ45), supporting 10/100Mbit/s adaptive, can be used as an IO controller (up to 8 IO devices connected) or smart device (version V2.5 and above), with a minimum update time of 4ms; One RS485 interface, with a maximum transmission rate of 187.5Mbps, supports S7 communication, Modbus RTU master/slave protocol, etc. Combined with the CM DP module, it can be connected to the PROFIBUS DP network.

Mechanical and environmental parameters: Rail installation is adopted; Operating environment temperature: 0-60℃, storage temperature: -20 -70℃. Relative humidity 5%-95% (no condensation), protection grade IP20, maximum installation altitude 2000m; It complies with the IEC 61000-4 series anti-interference standards, with an anti-static voltage of 8kV for air discharge and 4kV for contact discharge.

Function

Logic and process control functions: Supports programming languages such as ladder diagrams and function block diagrams, and realizes complex logical operations through a rich instruction set to meet the requirements of automation control such as equipment linkage and process switching. It integrates 8 PID closed-loop control loops, which can precisely adjust process parameters such as temperature, pressure and flow rate, and is suitable for closed-loop control scenarios.

Communication interaction function: The PROFINET interface supports high-speed data interaction and can be networked with HMI, other PLCS and other devices. The RS485 interface is compatible with multiple protocols and can be connected to devices such as frequency converters and intelligent meters. With the expansion module, it can be integrated into the PROFIBUS DP network to achieve collaborative control of multiple devices.

Expansion and debugging functions: Supports signal board and signal module expansion, allowing for flexible addition of analog I/O and special function modules to enhance system adaptability. Combined with the STEP 7 Micro/WIN SMART programming software, it has the functions of program forcing and online diagnosis, facilitating rapid debugging and troubleshooting.

Data protection and self-diagnosis function: It has a data retention function to ensure that critical data is not lost. The self-diagnostic function can monitor the module status in real time, promptly feedback faults and reduce downtime.

Application scenarios

Industrial automation production lines: In production lines such as electronic assembly and small component processing, control the coordinated operation of conveyor belts, sorters, and inspection equipment, and achieve precise positioning of workpieces through high-speed counters to enhance production efficiency.

Mechanical equipment control: Applicable to single-machine control of packaging machinery, printing equipment, CNC machine tools, etc., driving solenoid valves, servo drivers and other actuating elements to achieve action sequence control and precise operation of the equipment.

New energy and energy management: It is used in scenarios such as photovoltaic inverters and energy storage systems, collecting data such as voltage and current (analog quantity modules need to be expanded), and interlocking control equipment to achieve load regulation and energy-saving management.

Logistics and warehousing equipment: Control the stacker cranes, conveyor belts and other equipment in small stereoscopic warehouses. Through high-speed counting and communication functions, achieve automatic handling and sorting of goods, and improve warehousing efficiency.

Water treatment and environmental protection equipment: In small-scale water treatment systems, control pumps, valves and dosing equipment. Ensure stable water quality parameters through PID control and achieve automated operation.

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