PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-NIO4I is an Analog Combination Module for the SLC 500 series. This single-slot module combines two differential analog inputs with two analog outputs. It operates with a backplane current draw of 55 mA at 5V DC and 145 mA at 24V DC. The input stage utilizes a 16-bit Sigma-Delta analog-to-digital converter. It accepts both current and voltage signals with 500V field-to-backplane isolation.
This combination module functions in SLC 500 fixed or modular hardware architectures. It provides an aggregate channel update time of 512 microseconds across all circuits. Signal processing includes a 10 Hz bandwidth with high common mode and normal mode noise rejection. Operating temperature spans 0 to 60 degrees Celsius in environments with 5 to 95 percent non-condensing humidity.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Backplane Current (24 Volts) | 145 milliamps |
|---|
| Backplane Current (5 Volts) | (5 Volts)55 mA; (24 Volts) 145 mA |
|---|
| Bandwidth | 10 Hertz |
|---|
| Category | PLCs |
|---|
| GTIN | 10662073735882 |
|---|
| Input signal ranges | -20 to +20 mA; -10 to +10V dc |
|---|
| Inputs | 2 |
|---|
| Module Type | Analog Combination Module |
|---|
| Output Voltage Range | -10 to +10V dc - 1 LSB |
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| Resolution | 16 bits in, 14 bits out |
|---|
| Step Response | 60 milliseconds in, 2.5 milliseconds out |
|---|
| Tested Voltage Isolation | 500 Volts |
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| UNSPSC | 32151705 |
|---|
| UPC | 10662073735882 |
|---|
| Update Time | 512 microseconds |
|---|
| Weight | 0.88 lbs (0.40 kg) |
|---|
TECHNICAL INFORMATION
Features
- Single-slot footprint integrating two analog inputs and two analog outputs.
- Input conversion using a 16-bit Sigma-Delta converter with 1 LSB repeatability.
- Selectable analog input ranges covering -20 to +20 mA and -10 to +10V DC.
- Fast aggregate update time of 512 microseconds for all integrated channels.
- Field-to-backplane isolation tested at 500V for enhanced electrical protection.
- Common mode rejection of 105 dB and normal mode rejection of 55 dB at 60 Hz.
TECHNICAL INFORMATION
Applications
- Process loop control in compact SLC 500 chassis architectures.
- Simultaneous analog sensor measurement and actuator control within a single slot.
- Remote I/O racks requiring localized analog processing.
TECHNICAL INFORMATION
Connections / Interfaces
- Terminal block wiring for two differential analog inputs and two analog outputs.
- Direct backplane edge connection into standard SLC 500 chassis slots.
TECHNICAL INFORMATION
Installation Guidelines
- Install the module into any available chassis slot except slot 0 of the local rack.
- Slot 0 is reserved strictly for the SLC 500 processor or communication adapter.
- Verify system power is disconnected prior to inserting or removing the module.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure module memory addressing within the SLC 500 programming software.
- Scale voltage inputs across the -32,768 to +32,767 integer range.
- Scale current inputs across the -16,384 to +16,384 integer range.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley SLC 500 fixed and modular hardware platforms.
- Mounts in local SLC 500 chassis or remote I/O chassis via supported communication adapters.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley SLC 500 fixed and modular hardware platforms. Mounts in local SLC 500 chassis or remote I/O chassis via supported communication adapters.
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 is the slot placement rule for the 1746-NIO4I module?
Install the module in any chassis slot except slot 0, which is reserved for processors or adapters.
What signal ranges are supported on the inputs?
The inputs support bipolar voltage ranges of -10 to +10V DC and current ranges of -20 to +20 mA.
What is the backplane power requirement for the 1746-NIO4I?
The module requires 55 mA at 5V DC and 145 mA at 24V DC from the chassis backplane.
