The Allen-Bradley / Rockwell Automation 1771-IFF Analog I/O Input Module houses 8 differential or 16 single-ended inputs (selectable). 1771IFF voltage ranges from 0...5V DC, 1...5 DC, -+5V DC, -+10V DC. Current range is 4...20mA, 0...20mA, -+20mA, -+40mA. Data format for this module is a natural binary or BCD scaling to -+9999. No external power is required. Resolution is 12 bits +sign. Channel update is 5ms to 8 channels; 10ms to 16 channels. Wiring arm is the 1771-WG.
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