The Allen-Bradley 1746-NI16I is a 16-channel analog input module for SLC 500 systems, supporting voltage and current sensors, single-ended wiring, Class 1 or Class 3 operation, and configurable data formats.

Features and benefits

• 16 Analog Inputs – Supports voltage and current signals for versatile monitoring.

• Single-Ended Wiring – Simplifies installation and reduces wiring complexity.

• Class 1 or Class 3 Operation – Compatible with multiple SLC 500 processors.

• Configurable Data Formats – Offers engineering units, scaled-for-PID, or proportional counts.

• Diagnostic LEDs – Provides open-circuit, out-of-range, and invalid configuration alerts.

• Removable Terminal Block – Facilitates easy wiring and maintenance in expansion chassis.

FAQ

Q1: What types of signals does the 1746-NI16I support?
A1: It supports voltage (±10V, 0–5V, 1–5V, 0–10V) and current (0–20 mA, 4–20 mA, ±20 mA, 0–1 mA) analog signals.

Q2: How many input channels are available?
A2: The module provides 16 high-impedance single-ended analog input channels.

Q3: Can the module operate in different classes?
A3: Yes, it supports Class 1 and Class 3 configurations depending on the SLC 500 processor used.

Q4: How does the module indicate errors or issues?
A4: LED indicators show open-circuit, out-of-range, and invalid configuration conditions.

Q5: Where can the module be installed?
A5: It fits into any SLC 500 expansion chassis slot except the processor slot, using a removable terminal block for wiring.