Siemens 6ES7321-1FH00-0AA0 Controller Module

Product manual:

Main technical specifications:
Number of input channels: 16 digital inputs
Input current: approximately 2.5 mA per input channel (typical value)
Input delay: 25 ms (standard), used for signal debounce and stability
Isolation voltage: 250V AC (between input and backplane bus)
Functional features:
High voltage input: This module supports input of 120V and 230V AC, suitable for processing common high voltage equipment signals in industrial sites.
16 input channels: Provides 16 independent input channels, suitable for application scenarios that require a large amount of high-voltage signal acquisition.
LED indicator light: Each input channel is equipped with an LED status indicator light for real-time monitoring of signal status.
Security isolation: High voltage isolation is provided between the input and backplane bus to ensure the safety of the system.
Strong stability: equipped with input signal debounce function to prevent unstable input caused by signal jitter.
Industrial grade design: The module is designed specifically for industrial applications, suitable for harsh factory and on-site environments.

Product details picture:

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