The 1746-NI4 is an analog input module for Allen-Bradley SLC 500 series PLCs, providing 4 differential input channels for precise measurement of voltage and current signals. With 16-bit high resolution, this module is suitable for process control, data acquisition, and monitoring systems.
Provides 4 independent differential input channels with effective common-mode rejection
Supports multiple input ranges: 0-10V, 0-5V, ±10V, 0-20mA, 4-20mA
16-bit high-resolution ADC ensures measurement accuracy
Each channel can be independently configured for input type and range
Electrical isolation between channels and backplane bus
Front panel equipped with status indicators for easy diagnostics and maintenance
Parameter | Value |
Number of Input Channels | 4 differential channels |
Signal Type | Voltage/Current |
Voltage Range | 0-10V, 0-5V, ±10V |
Current Range | 0-20mA, 4-20mA |
Resolution | 16-bit |
Accuracy | ±0.5% full scale (25°C) |
Input Impedance | Voltage: 10MΩ, Current: 250Ω |
Update Rate | 5ms (all channels) |
Isolation Method | Optoelectronic isolation |
Operating Temperature | 0-60°C |
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