Modbus I/O > Discrete I/O Modules
Multi-Channel Discrete I/O Modules. Active-Low Inputs Sinking Outputs (Low-Side Switching).
Multi-Channel Discrete I/O Modules. Active-High Inputs Sourcing Outputs (High-Side Switching).
Frequency/Pulse Counter Modules. Periodic or Pulse Waveform Input. Limit Alarms or Discrete Outputs.
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