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1771-NIS | Allen-Bradley PLC-5 8-Channel 4–20 mA Sinking/Sourcing Analog Input Module With Loop Power
- Regular price
- $1,349.00
- Sale price
- $1,349.00
- Regular price
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Product Description P/N: 1771-NIS
Description
The Allen-Bradley 1771-NIS is an analog input module for PLC-5 systems, providing eight sinking/sourcing current inputs rated for 4–20 mA. It includes onboard loop power capability to support 2-wire transmitters without external supplies. The 1771-NIS operates within a 0–60°C temperature range and draws 2.9 A from the backplane.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | I/O Modules |
| Part Number | 1771-NIS |
| Subcategory | Analog Input Modules |
| Manufacturer | Rockwell Automation |
| Module Type | N-Series Analog I/O Module |
| Number of Inputs | 8 |
| Input Type | Current (4–20 mA) |
| Input Range | 0.1–21 mA |
| Resolution | 0.34 µA/bit (16-bit unipolar) |
| Loop Power Provided | 20–30 VDC |
| Number of Outputs | 0 |
| Backplane Current | 2.9 A |
| Data Format | BDC or Natural Binary |
| Typical AC Signal Delay (Off) | 45 ±15 ms |
| Typical DC Signal Delay (Off) | 50 ms |
| Under-Range / Over-Range Limits | 3.2 mA / 21 mA |
| Normal Mode Rejection | 50–60 dB |
| Common Mode Rejection | 150 dB |
| Offset Drift | ±200 nA/°C |
| Gain Drift | ±95 ppm/°C |
| Update Time | ≤25 s per module |
| Bandwidth | 9 Hz |
| Wiring Arm | 1771-WH |
| RTP Choice | 1771-RTP4 |
| Mounting | Rack Mountable |
| Operating Temperature | 0–60°C |
| Relative Humidity | 5–95% non-condensing |
Information About 1771-NIS
The 1771-NIS is part of the high-resolution 1771-N series and is designed for use with PLC-3, PLC-5, and PLC-5/250 controllers in legacy rack-based installations. Each of its eight analog input channels supports 0.1–21 mA with high-accuracy resolution and calibration options for industrial measurement tasks. The module supplies its own loop power (20–30 VDC) to connected 2-wire devices, simplifying field wiring and reducing the need for external power components. Typical applications include process monitoring, current-loop instrumentation, and integration of 4–20 mA sensors into classic PLC-5 automation systems.
Key Features:
- Eight current input channels: Supports 4–20 mA signals with module-supplied loop power.
- High-resolution measurement: 0.34 µA/bit resolution for precise analog acquisition.
- Wide current range: Accepts 0.1–21 mA with under-range and over-range detection.
- Internal loop supply: Provides 20–30 VDC loop power for 2-wire transmitters.
- Robust signal handling: Includes normal mode rejection up to 60 dB and 150 dB common mode rejection.
- Rack-mounted design: Compatible with PLC-5/250, PLC-5, and PLC-3 chassis.
- Configured wiring arms: Works with 1771-WH wiring arm and 1771-RTP4 terminal panel.
- Industrial environmental ratings: Operates from 0–60°C with 5–95% non-condensing humidity.
The 1771-NIS delivers the reliability and precision required for legacy PLC-5 based analog signal acquisition and process control.
Description
The Allen-Bradley 1771-NIS is an analog input module for PLC-5 systems, providing eight sinking/sourcing current inputs rated for 4–20 mA. It includes onboard loop power capability to support 2-wire transmitters without external supplies. The 1771-NIS operates within a 0–60°C temperature range and draws 2.9 A from the backplane.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | I/O Modules |
| Part Number | 1771-NIS |
| Subcategory | Analog Input Modules |
| Manufacturer | Rockwell Automation |
| Module Type | N-Series Analog I/O Module |
| Number of Inputs | 8 |
| Input Type | Current (4–20 mA) |
| Input Range | 0.1–21 mA |
| Resolution | 0.34 µA/bit (16-bit unipolar) |
| Loop Power Provided | 20–30 VDC |
| Number of Outputs | 0 |
| Backplane Current | 2.9 A |
| Data Format | BDC or Natural Binary |
| Typical AC Signal Delay (Off) | 45 ±15 ms |
| Typical DC Signal Delay (Off) | 50 ms |
| Under-Range / Over-Range Limits | 3.2 mA / 21 mA |
| Normal Mode Rejection | 50–60 dB |
| Common Mode Rejection | 150 dB |
| Offset Drift | ±200 nA/°C |
| Gain Drift | ±95 ppm/°C |
| Update Time | ≤25 s per module |
| Bandwidth | 9 Hz |
| Wiring Arm | 1771-WH |
| RTP Choice | 1771-RTP4 |
| Mounting | Rack Mountable |
| Operating Temperature | 0–60°C |
| Relative Humidity | 5–95% non-condensing |
Information About 1771-NIS
The 1771-NIS is part of the high-resolution 1771-N series and is designed for use with PLC-3, PLC-5, and PLC-5/250 controllers in legacy rack-based installations. Each of its eight analog input channels supports 0.1–21 mA with high-accuracy resolution and calibration options for industrial measurement tasks. The module supplies its own loop power (20–30 VDC) to connected 2-wire devices, simplifying field wiring and reducing the need for external power components. Typical applications include process monitoring, current-loop instrumentation, and integration of 4–20 mA sensors into classic PLC-5 automation systems.
Key Features:
- Eight current input channels: Supports 4–20 mA signals with module-supplied loop power.
- High-resolution measurement: 0.34 µA/bit resolution for precise analog acquisition.
- Wide current range: Accepts 0.1–21 mA with under-range and over-range detection.
- Internal loop supply: Provides 20–30 VDC loop power for 2-wire transmitters.
- Robust signal handling: Includes normal mode rejection up to 60 dB and 150 dB common mode rejection.
- Rack-mounted design: Compatible with PLC-5/250, PLC-5, and PLC-3 chassis.
- Configured wiring arms: Works with 1771-WH wiring arm and 1771-RTP4 terminal panel.
- Industrial environmental ratings: Operates from 0–60°C with 5–95% non-condensing humidity.
The 1771-NIS delivers the reliability and precision required for legacy PLC-5 based analog signal acquisition and process control.