6ES7321-1FF10-0AA0 Siemens Simatic S7-300 Digital I/O Module

Core parameters

Input points: 32 channels, divided into 2 groups of 16 channels per group, enhancing the flexibility of signal management

Rated input voltage: Compatible with AC 120V and AC 230V, it can adapt to different regional power supply standards without the need to replace modules

Signal threshold

Signal "0" : 0~50V AC (120V specification), 0~100V AC (230V specification)

Signal "1" : 70-150V AC (120V specification), 165-264V AC (230V specification)

Input delay: Default 12ms, which can be set to 25ms, 50ms, or 100ms through software to flexibly cope with different interference environments

Isolation performance: Electrical isolation between groups (each group is also isolated from the backplane bus), with an isolation voltage of 250V AC, reducing the risk of signal interference

Working environment: Working temperature 0~60℃, storage temperature -40 ~+70℃, adaptable to temperature and humidity changes in industrial sites

Power consumption and current: The typical power consumption is approximately 8W, and the maximum current of the backplane bus is 150mA (5V DC).

Function

Wide voltage compatibility: A single module is compatible with two mainstream AC voltages, simplifying the selection process for cross-border projects or multiple scenarios and reducing inventory pressure.

Group isolation protection: Two groups of channels are independently isolated. When one group of signals fails, it does not affect the other group. At the same time, it prevents external AC interference from being transmitted to the controller, enhancing system stability.

Adjustable filter delay: Four delay times are available for selection, which can specifically filter out noise in AC signals (such as motor start-up interference) to ensure the accuracy of signal acquisition.

High integration and easy maintenance: The 32-channel high-density design saves rack space. Combined with the S7-300 active bus module, it can be hot-swaddled, eliminating the need to shut down the machine during maintenance and reducing production interruptions.

Application scenarios

High-voltage equipment status monitoring: Feedback signals for AC 220V/110V devices, such as the start and stop status of AC pumps and high-pressure fans, as well as the on-off feedback of large valves.

Industrial strong current system integration: Compatible with sensors (such as AC proximity switches), emergency stop buttons or limit switches that use AC signals in factory production lines, to achieve digital signal collection.

Building and infrastructure monitoring: It is used for monitoring strong current equipment in large buildings such as shopping malls and power stations, such as the operating status of air conditioning units, switch signals of the main lighting circuit, and feedback of equipment in elevator machine rooms.

Cross-regional project deployment: Due to its compatibility with dual voltages, it is suitable for cross-border projects involving different power supply standards. There is no need to purchase modules separately, reducing supply chain costs and debugging complexity.

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