Siemens 6ES7321-7BH00-0AB0 Digital Input Module

Product manual:

Main technical specifications:
Number of input channels: 16 digital inputs
Input voltage: 24V DC
Input current: approximately 7mA per channel
Input latency: 0.1 to 12 ms (configurable)
Isolation voltage: 500V AC (input to the backplane bus)
Functional features:
24V DC input: Supports 24V DC input signals, suitable for receiving signals from sensors, switches, and other low-voltage control signals.
16 input channels: Provides 16 input channels, suitable for medium-sized signal acquisition needs.
LED status indicator: Each input channel has an LED indicator light that displays the real-time status of the input signal, making it convenient for debugging and monitoring.
Electrical isolation: Through isolation design, ensure the safety and stability between the input signal and the backplane bus.
High anti-interference capability: The module design meets industrial grade anti-interference requirements, ensuring stable operation in complex industrial environments.
Configurable input delay: The input delay can be adjusted to optimize response speed according to application requirements and adapt to different industrial application scenarios.

Product details picture:

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