- Receives eight isolated 4–20 mA process inputs
- Provides documented loop power for compatible two-wire transmitters
- Supports remote termination through the specified 1771-RTP4 arrangement
1771-NIS is an Allen-Bradley high-resolution sourcing analog input module for current-loop instrumentation.
Unlike a passive current-input module, it can supply the documented loop power used by compatible two-wire field transmitters.
Confirm transmitter polarity, loop ownership, isolation, remote termination and block-transfer configuration before reconnecting field circuits.
Availability, condition, price, and shipping time for 1771-NIS are confirmed during quotation.
Allen-Bradley 1771-NIS 8-Channel High-Resolution Isolated Analog Input Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Configure each channel for the documented sourcing or sinking arrangement
- Module-supplied loop power is available for compatible two-wire transmitters
- Externally powered transmitters require the alternate official connection and correct polarity
- Use the documented remote termination panel and interconnect cable
- Verify terminal assignments, fuses, shields, and loop returns before startup
- Preserve the channel-to-terminal mapping during replacement
- Channel diagnostics include open-circuit detection
- Programmable scaling and alarms are transferred through the module configuration
- Use the official external-reference procedure when self-calibration is required
- Isolated 4–20 mA process-transmitter acquisition
- Loop-powered two-wire transmitter systems
- High-resolution multi-loop process monitoring with remote termination