Product Summary
The Allen-Bradley 1746-NI16V is a high-density analog input module for the SLC 500 platform. It provides sixteen channels for precise voltage measurement. Engineers use this module for accurate data acquisition in critical control systems.
Expert Technical Evaluation & Performance Review
High-Resolution Signal Acquisition
The 1746-NI16V uses a 16-bit sigma-delta converter for precise signal digitization. This module accepts input voltages like ±10V dc and 0 to 5V dc. Its step response ranges from 9 to 630 milliseconds. This makes it ideal for applications needing accurate analog readings.
Programmable Digital Filtering
This module includes a low-pass digital filter with programmable frequencies. You can set filter frequencies from 6 Hz to 250 Hz. This feature lets you reduce electrical noise on your signals. It ensures stable readings in electrically harsh industrial environments.
Robust Environmental and Electrical Specifications
The 1746-NI16V operates reliably in temperatures from -25 to 60 degrees Celsius. It provides 500V AC isolation for one second between channels. This isolation protects your SLC 500 processor from voltage spikes. The module also holds approval for Class I Division 2 hazardous locations.
Maintenance, Troubleshooting & Longevity Protocols
Safe Installation Procedures
Always disconnect power before installing or removing the 1746-NI16V from the chassis. The module fits into any I/O slot except slot zero. It occupies only one slot in the local or expansion chassis. Following this step prevents damage from electric arcs.
Wiring and Cable Management
Use Belden 8761 or equivalent cable for optimal signal integrity. The module works with a 1746-RT25G replaceable terminal block. You can also use pre-wired cables with 1492-AIFM16-F-3 terminal blocks. This wiring approach reduces errors and simplifies future troubleshooting.
Monitoring Module Health
The module has five green LED indicators for status. One LED indicates overall module status. The other four LEDs show the status for each group of four channels. Check these LEDs to quickly identify a faulty channel group.
Logistics & Standard Packaging Details
- One Allen-Bradley 1746-NI16V analog input module
- One 1746-RT25G replaceable terminal block
- Installation and user manual documentation
- Express delivery shipping is available via FedEx, UPS, and DHL.
