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1746-NI4
The Allen Bradley 1746-NI4 module is an advanced high-resolution input module in the SLC 500 series. It supports four input channels and is designed for precise signal processing, accommodating input ratings of -10 to 10V DC and -20 to 20 mA.
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Technical specifications for 1746-NI4
| Manufacturer | Allen Bradley |
|---|---|
| Product Type | High-Resolution Input Module |
| Product Line | SLC 500 |
| Part Number | 1746-NI4 |
| UPC | 662073735908 |
| Weight | 1.00 lbs (0.45 kg) |
| Number of Inputs | 4 Inputs |
| Input Ratings | -10 to 10V DC, -20 to 20 mA |
| Backplane Current at 5V | 25 mA |
| Backplane Current at 24V | 85 mA |
| Backplane Isolation for 1 Minute | 710V DC and 500V AC |
| Step Response | 60 ms |
| Conversion Method | Sigma-Delta |
| Converter Resolution | 16 Bit |
| Nominal Current Input Impedance | 250 Ohms |
| Voltage Input Impedance | 1 Megaohm |
The 1746-NI4 is a high-resolution input module from Allen Bradley's renowned SLC 500 series. This component is engineered to enable precise measurements and data acquisition through its capability of handling four input channels. It can accept input signals ranging from -10 to 10 volts DC as well as current inputs between -20 to 20 milliamps.
Power efficiency is achieved with a backplane current of 25 milliamps at 5 volts and 85 milliamps at 24 volts. For added protection, an isolation level of 710 volts DC and 500 volts AC is maintained for up to a minute, ensuring circuit safety and integrity during operation.
With a conversion method utilizing Sigma-Delta technology, this module offers a remarkable 16-bit resolution for accurate signal conversion. The step response time is rated at 60 milliseconds, allowing for responsive signal processing. Its nominal current input impedance stands at 250 ohms, while the voltage input impedance is rated at 1 megaohm, facilitating high-quality inputs for various applications. Overall, the 1746-NI4 input module is fundamental for applications demanding high accuracy and reliability.
| Revision Part # | Also known as | |
|---|---|---|
| 1746-NI4 Ser A | 1746-NI4/A, Series A, Rev A | |
| 1746-NI4 Ser B | 1746-NI4/B, Series B, Rev B | |
| Don't see your particular revision? Contact us now. | ||
- 1746-N14
- 1746-NIA
- 1746N14
- 1746NI4
- 1746NIA
- 1747-NI4
- 17A6-NI4
- 17A6-NIA
- 17A6NI4
- 17A6NIA
- I746-NI4
- I746NI4
- I7A6-N1A
- I7A6N1A
Does the 1746-NI4 come with a warranty?
Yes, the 1746-NI4 includes a free 2-year DO Supply warranty. You can upgrade to a 3-year warranty at checkout for even more protection.
How many inputs does this module have?
This module has four total inputs.
What is the bandwidth of the 1746-NI4?
The 1746-NI4 has a 10 Hertz bandwidth.
Where can I send the 1746-NI4 to be repaired?
DO Supply, Inc. offers a variety of repair services for the 1746-NI4.
The 1746-NI4 is a multi-use analog module that provides both voltage and current reading for each individual channel
Individual card troubleshooting
Ensure the power light on the card comes on when inserted into the rack
Check dip switches to see that you are using the correct setting (current or voltage) for your application
Visually inspect the card outside of the rack: check that resistors, capacitors, TRIACs and chips all look functional
In this demonstration of testing the 1746-NI4 we will be using the following parts
1746-A7 (Rack)
1747-L553 (processor)
1746-P2 (power supply)
Variable voltage DC power supply
Test Voltage First:
- Ensure that all dip switches are in the off position (as pictured)
Insert the card into the rack (we will be using slot 5)
1. Open a new project in RS-Logix 500 and select the processor that will be used.
2. Go into I/O configuration to read the 1747-NI4 in the back plane
NOTE: If the wrong processor has been selected from step 1, you will be asked to change the processor type. A window will appear and ask you to correct the problem, select “okay” to do so.
3. Download the program to the processor
4. Once online, go into the input table
This is where we will read our inputs changing when various voltages are applied
INPUT ranges are
Current: -20mA to +20mA
Voltage: -10vDC to +10vDC
Terminals for testing:
Positive terminals
0
3
6
9
Negative terminals:
1
4
7
10
5. Applying 5.33v to terminal 0 and 1 for testing input 1 We will get a reading around 17482 +- 100
6. Continue this process all the way down until input 3 has been reached
Testing with ANL COM
Apply the black lead (negative) to ANL COM
Now for each input apply the 5.33v to each positive input terminal
- 0
- 3
- 6
- 9
We will get a reading of 8735 +-100
testing current we will follow the same process except this time our dip switches on the side of the card will be in the on position (up instead of down)
Each input reading will be similar to the last for both voltage and current testing
The Allen-Bradley 1746-NI4 is a SLC 500 Analog I/O Module. This Analog I/O Module has 4 Inputs and a Backplane Current (5 Volts) of 25 milliamps. It has a Bandwidth of 10 Hertz and an Update Time of 512 microseconds.