PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-NIV is an isolated analog input module for the PLC-5 control platform. This module features eight input channels designed for high-resolution measurement of voltage and current process signals. It provides 16-bit analog-to-digital conversion resolution across all configured input channels. The hardware installs into standard 1771 I/O chassis assemblies.
Each channel supports voltage inputs of plus or minus 5 volts DC. Current inputs of plus or minus 20 milliamperes require specific remote termination panels. Data values transfer to the processor in natural binary or binary coded decimal format. The assembly connects to field wiring using a removable 1771-WH wiring arm.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Number of Inputs | 8 channels |
|---|
| Input Resolution | +/- 5 V DC (0.17 uV/bit); +/- 20 mA (0.67 uA/bit) |
|---|
| Analog Resolution | 16 bits |
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| Input Types | Voltage, Current |
|---|
| Backplane Current | 1.5 A |
|---|
| Data Format | BCD or Natural Binary |
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| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
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| Typical DC Signal Delay (Off) | 50 ms |
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| Wiring Arm | 1771-WH |
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| RTP Selection | 1771-RTP4 (Voltage), 1771-RTP3 (Current) |
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| Module Location | 1771-A1B, A2B, A3B, A3B1, A4B, 1771-AM1, AM2 chassis |
|---|
| Mounting | Rack mountable |
|---|
TECHNICAL INFORMATION
Features
- Provides eight isolated high-resolution analog input channels.
- Delivers 16-bit analog-to-digital signal conversion resolution.
- Supports selectable natural binary or binary coded decimal data formats.
- Draws 1.5 amperes of backplane current from the chassis power supply.
- Connects to field wiring via the 1771-WH wiring arm.
TECHNICAL INFORMATION
Applications
- Analog process signal monitoring in PLC-5 automation systems.
- High-resolution voltage and current data acquisition.
- Industrial instrumentation interfacing requiring channel isolation.
TECHNICAL INFORMATION
Connections / Interfaces
- Connects to field wiring using the 1771-WH removable wiring arm.
- Interfaces with 1771-RTP4 remote termination panels for voltage input signals.
- Interfaces with 1771-RTP3 remote termination panels for current input signals.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into any compatible 1771 I/O chassis slot.
- Disconnect chassis power before inserting or removing the module.
- Seat the 1771-WH wiring arm securely onto the chassis pivot points.
- Verify the chassis power supply can supply the 1.5 ampere backplane requirement.
TECHNICAL INFORMATION
Configuration Guidelines
- Select natural binary or binary coded decimal data format based on processor program requirements.
- Configure remote termination panels appropriately for voltage or current input modes.
TECHNICAL INFORMATION
Compatibility
- Installs directly into 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, and 1771-A4B chassis.
- Compatible with 1771-AM1 and 1771-AM2 chassis mounting assemblies.
- Compatible with 1771-WH field wiring arms.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSInstalls directly into 1771-A1B, 1771-A2B, 1771-A3B, 1771-A3B1, and 1771-A4B chassis. Compatible with 1771-AM1 and 1771-AM2 chassis mounting assemblies. Compatible with 1771-WH field wiring arms.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What input signal types does the Allen-Bradley 1771-NIV module accept?
The 1771-NIV accepts plus or minus 5V DC voltage and plus or minus 20mA current signals.
Which wiring arm is required for the 1771-NIV analog input module?
The 1771-NIV module uses the Allen-Bradley 1771-WH removable wiring arm for field connections.
What chassis types are compatible with the 1771-NIV?
The module installs into 1771-A1B, A2B, A3B, A3B1, A4B, 1771-AM1, and AM2 chassis.
What is the indicative market price for the 1771-NIV?
Observed market reference pricing is approximately $872 for refurbished units. These figures are indicative market reference pricing only and are not a final quotation.
