Product Summary
The Allen-Bradley 1746-NI16I is a high-resolution analog input module for the SLC 500 platform. It delivers sixteen input channels with 16-bit resolution. This module converts analog process signals into digital data for precise closed-loop control. It supports current signals like 0 to 20 mA and 4 to 20 mA.
Theme Option B: Step-by-Step User & Installation Guide
You must install the 1746-NI16I in any I/O slot except slot zero. This module occupies a single slot in the chassis. You do not need to remove the terminal block for installation. If you remove it, use the label to identify the correct location.
Use Belden 8761 cable or an equivalent for wiring signals. The maximum wire size is 14 AWG. You can terminate up to two wires per terminal. This prevents clutter and helps close the module door properly.
The module uses a 25-pin D-shell connector for field wiring. Set the input filter frequencies using software. You can choose from 6 Hz, 10 Hz, 20 Hz, 40 Hz, 60 Hz, 80 Hz, 100 Hz, or 250 Hz. This low-pass digital filter reduces electrical noise.
Select the data format for your application. Options include Engineering Units, Scaled for PID, and Proportional Counts. The module also detects open circuits on input channels. The time to actuate for this feature is less than 5 seconds.
The module draws 125 mA from the 5V backplane and 75 mA from the 24V backplane. Its maximum thermal dissipation is 2.43 Watts. The operating temperature range is -25 to 60 degrees Celsius.
Theme Option A: Product Procurement & Buyer Guide
The 1746-NI16I provides sixteen inputs for monitoring process variables. These inputs accept 0 to 20 mA, 4 to 20 mA, ±20 mA, and 0 to 1 mA signals. Use this module to measure flow, pressure, or temperature for feedback control.
This module is critical for implementing PID algorithms. Without this feedback signal, automatic control cannot work properly. The 16-bit resolution ensures high accuracy for demanding applications. It uses a Sigma-Delta conversion type for reliable data.
The module offers 500V AC isolation for one second. This protects your system from ground loops and voltage spikes. The common mode voltage range is ±10.25 Volts. The input impedance is 249 ohms, and the maximum current input is ±30 mA.
Consider the environmental conditions for your installation. The module operates with 5% to 95% relative humidity without condensation. The nonoperating temperature range is -40 to 85 degrees Celsius. This ensures reliable performance in harsh industrial settings.
Five green LED indicators show the status of each group of four channels. One additional LED indicates module status. This provides a quick visual check of system health. The module's step response time ranges from 9 to 630 milliseconds.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1746-NI16I analog input module
- Product is individually packaged in anti-static material
- Includes the 25-pin D-shell connector (AIFM)
- Express delivery shipping is available via FedEx, UPS, and DHL
