6ES7351-1AH02-0AE0 Siemens Simatic S7-300 Positioning Module

Product parameters

Core specifications: 8 independent counter/timer channels, compatible with the backplane bus of S7-300 PLC, with electrical isolation between channels

Counting types: increasing counting, decreasing counting, bidirectional counting;

Counting range: -2147483648 to +2147483647; Maximum counting frequency: 10kHz, 5kHz

Timing types: connection delay, disconnection delay, pulse timing, periodic timing;

Timing range: 1ms to 2147483647ms

Timing accuracy: ±0.1% (at 25°C) +1 clock cycle

Counting input: Supports differential signals and single-ended signals, with input impedance ≥10kΩ;

Status output: 8-channel collector open circuit output, which can be used to trigger external actuators

Electrical isolation between isolation and anti-interference channels, as well as between modules and backplane buses; The EMC complies with the EN 61000-4 standard and is equipped with a built-in pulse filter circuit

Working power supply: 24V DC Power consumption ≤3W

Operating temperature: 0°C to 60°C, storage temperature: -20 °C to +60°C; Humidity: 5%-95% RH (no condensation)

Certification and Standards: Compliant with CE, UL, and CSA certifications; Compatible with all series of S7-300 cpus

Software support: Compatible with Step7 V5.x programming software (V5.3 and above), supports setting channel mode and parameters through hardware configuration tools, and supports interrupt triggering

Function

Multi-channel flexible configuration: The 8 channels can be independently set to counting or timing mode. A single module can meet the control requirements of multiple scenarios without the need for additional expansion modules.

High-precision counting control: Supports high-frequency pulse signal acquisition, with a 32-bit wide counting range suitable for large-value counting scenarios; Supports comparison function. When the count value reaches the preset threshold, an interrupt or output signal is triggered to achieve precise position control.

Multi-functional timing control: Supports 4 commonly used timing types, with a timing range covering 1ms to 24.8 days, which can meet different needs such as short-term pulse triggering and long-term cycle control. Supports online modification of fixed time values, allowing for adjustment of process parameters without shutting down the machine.

Interrupt and output linkage: It features multiple interrupt functions such as count overflow, timed completion, comparison matching, and edge triggering of input signals. Interrupt signals can be quickly fed back to the PLC to trigger subsequent control logic. The 8-channel collector open-circuit output can directly drive small actuators to achieve immediate response to counting/timing results.

Anti-interference and stability design: Electrical isolation between channels suppresses cross-interference. Built-in configurable filter circuits effectively resist electromagnetic noise in industrial sites, ensuring the stability of pulse signal acquisition and output.

Diagnosis and status Monitoring: It is equipped with the functions of diagnosing power faults, abnormal input signals, and short circuits in output. Fault information is uploaded to the PLC in real time. Support online monitoring of the count value, remaining timing time, channel working status and parameter configuration through the Step7 software, which is convenient for debugging and maintenance.

Seamless system integration: Direct communication with the S7-300 PLC backplane bus, counting/timing data can be synchronized in real time to the PLC process image area. It supports parameter modification and start/stop channels through PLC programs, and status data can also be uploaded to the SCADA system for remote monitoring.

Application scenarios

In the mechanical manufacturing industry: counting of machine tool processing parts, positioning of workpieces on conveyor lines, monitoring of tool life, and meeting the high-precision control requirements of discrete manufacturing.

In the automotive manufacturing industry: counting the number of bolts tightened on the automotive assembly line, measuring the running distance of conveyor belts, and timing equipment action cycles to ensure production rhythm and process consistency.

Packaging and printing industry: Product counting for packaging machines, paper length measurement for printing machines, and timing control for label application, enhancing the accuracy and efficiency of packaging/printing.

Logistics and warehousing industry: The positioning of shelves in automated stereoscopic warehouses, the counting of goods on conveyors, and the timing of sorting equipment actions support the automated logistics process.

Power and energy industry: Speed counting of generator sets, charging and discharging cycle counting of energy storage batteries, and timed control of equipment inspection to ensure the safe operation and maintenance management of equipment.

General automation equipment: Elevator floor counting and leveling control, automatic filling machine filling frequency statistics, constant temperature box timed start and stop control, meeting the counting and time control requirements of various equipment.

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