PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-NIVR PLC-5 Analog Input Module provides eight analog input channels. It features four voltage or current inputs and four resistance temperature detector inputs. Voltage and current circuits support nominal spans of plus or minus 5V and 20mA. Working ranges extend up to plus or minus 5.5V or 22mA with a resistor. Input impedance on the voltage and current channels exceeds 10 megaohms. Overvoltage protection is rated at 140V AC RMS. Maximum backplane power dissipation reaches 6W at 5V DC.
The module accepts RTD sensors across an input span from 1 to 650 ohms. Supported sensors include 100 ohm platinum, 120 ohm nickel, and 10 ohm copper. The typical RTD excitation current is 1 mA. Conversion options provide natural binary or binary-coded decimal data formats. Field connections interface through a 1771-WH wiring arm or a 1771-RTP4 panel. The assembly operates in rack enclosures at ambient temperatures from 0 to 60 degrees Celsius.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Backplane Current | 1.5 Amperes |
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| Category | PLCs |
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| Data Format | BDC or Natural Binary |
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| Input Resolution | Voltage/Current Resolution +/- 5 Volts DC (0.17 Milivolts/bit), +/- 20 Miliamperes (0.67 Microamperes/bit); RTD Resolution 1-650 Ohms (0.01 Ohms/bit), 100 Ohms Platinum (Europe 385, U.S. 3916) (0.03 Celsius/bit, 0.06 Fahrenheit/bit), 120 Ohms Nickel, 10 Ohms Copper |
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| Input Types | 4 Voltage Current and 4 RTD |
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| Module Type | N-Series Analog I/O Module |
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| Mounting | Rack Mountable |
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| Number of Inputs | 8 Inputs |
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| Number of Outputs | 0 Outputs |
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| Product Line | PLC 5 |
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| RTP Choice | 1771-RTP4 |
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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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| UPC | 612598116676 |
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| Weight | 1.75 lbs (0.79 kg) |
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| Wiring Arm | 1771-WH |
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TECHNICAL INFORMATION
Features
- Equipped with four voltage or current inputs and four RTD inputs.
- Accepts 100 ohm platinum, 120 ohm nickel, and 10 ohm copper RTDs.
- Delivers 16-bit unipolar resolution up to 10 milliohms per bit.
- Protects field inputs against overvoltage up to 140V AC RMS.
- Provides selectable data formatting in natural binary or BCD.
- Operates with a maximum backplane current draw of 1.5 Amperes.
TECHNICAL INFORMATION
Applications
- Process temperature monitoring using industrial RTD sensor networks.
- Analog voltage and current signal acquisition in PLC-5 architectures.
- Thermal monitoring within PLC-3 and PLC5-250 control installations.
TECHNICAL INFORMATION
Connections / Interfaces
- Supports field terminations via the 1771-WH wiring arm.
- Connects to remote interface cabling through 1771-RTP4 panels.
- Provides backplane interface contacts for chassis power and data transfer.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the module into any available slot in a 1771 I/O chassis.
- Turn off chassis backplane power before inserting or removing the module.
- Secure the 1771-WH wiring arm to prevent accidental disconnection.
- Maintain ambient operating temperatures between 0 and 60 degrees Celsius.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure input channels for voltage, current, or specific RTD types.
- Select data representation between natural binary and binary-coded decimal formats.
- Utilize calibration values of 1/649 ohm for RTD resistance scaling.
TECHNICAL INFORMATION
Compatibility
- Installs directly into standard 1771 I/O chassis racks.
- Communicates across backplanes with Allen-Bradley PLC-5 controllers.
- Operates with Allen-Bradley PLC-3 and PLC5-250 processor platforms.
- Interfaces with 1771-WH wiring arms.
- Connects using 1771-RTP4 remote termination panels.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSInstalls directly into standard 1771 I/O chassis racks. Communicates across backplanes with Allen-Bradley PLC-5 controllers. Operates with Allen-Bradley PLC-3 and PLC5-250 processor platforms. Interfaces with 1771-WH wiring arms. Connects using 1771-RTP4 remote termination panels.
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 types does the 1771-NIVR module accept?
The module accepts four voltage or current inputs and four RTD inputs. Supported RTDs include 100 ohm platinum, 120 ohm nickel, and 10 ohm copper.
Which programmable controllers support the 1771-NIVR?
The 1771-NIVR operates with Allen-Bradley PLC-5, PLC-3, and PLC5-250 systems. It mounts directly into standard 1771 I/O chassis.
What wiring accessories connect to the 1771-NIVR?
The module uses the 1771-WH wiring arm. It also supports remote connections through the 1771-RTP4 remote termination panel.
What is the backplane current draw for the 1771-NIVR?
The module draws up to 1.5A at 5V DC from the backplane. Maximum power dissipation is 6W.
