Digital input modules are typically used to receive external digital signals and convert them into data that can be used by devices or systems. The following are some common functions that digital input modules may have in general:
Digital input channels: Digital input modules are typically equipped with multiple digital input channels for receiving digital signals from different sources.
Signal sampling and conversion: The digital input module can sample and convert input signals, converting continuous digital signals into discrete digital data for system processing.
High speed input: Some digital input modules have the ability to input at high speeds and can handle rapidly changing digital signals, making them suitable for real-time monitoring and control applications.
State detection: Digital input modules are usually able to detect changes in the state of input signals, such as changes from low level to high level or from high level to low level.
Programmability and flexibility: Some digital input modules have programmability and flexibility, which can be configured and customized through software to adapt to different application scenarios and signal types.
Alarm and notification functions: Some digital input modules have alarm and notification functions, which can trigger an alarm or notify the operator when the input signal meets specific conditions.