1756-IN16

Overview

The 1756-IN16 is a 16-point AC digital input module for the ControlLogix system, accepting 10–30V AC signals and offering group isolation and configurable filtering.

Input Specifications

• Inputs: 16 (8 points per group)

• Voltage category: 24V AC, 50/60 Hz

• Operating voltage range: 10…30V AC, 47…63 Hz

• Nominal input voltage: 24V AC, 50/60 Hz

• Input voltage range: 10–30V AC

• Input current: Up to 25 mA max

• Off-state voltage (max): 5V

• Off-state current (max): 2.75 mA

• On-state current (min): 5 mA @ 10V AC

• On-state current (max): 21 mA @ 30V AC

• Inrush current (max): 250 mA

• Input impedance (max): 2.5 kΩ @ 30V AC

Timing Characteristics

• Input delay (off to on): 10 ms max + filter (0, 1, or 2 ms selectable)

• Input delay (on to off): 10 ms max + filter (9 or 18 ms selectable)

• Cyclic update time: 200 µs to 750 ms

• Time stamp resolution: ±200 µs

• Change-of-state detection: Software configurable

Electrical Ratings

• Backplane current (5.1V DC): 135 mA

• Backplane current (24V DC): 2 mA

• Total backplane power: 0.56 W

• Power dissipation (max): 5.1 W @ 60°C (140°F)

• Thermal dissipation: 17.39 BTU/hr

Isolation

• Isolation voltage: 250V (continuous), basic insulation

• Isolation scope: Inputs-to-backplane and group-to-group

• No isolation: Between inputs within the same group

Mechanical & Environmental

• Module keying: Electronic, software configurable

• Removable terminal block housing: 1756-TBNH or 1756-TBSH

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