Overview
Input Configuration and Signal Operation
The 1769-IQ16 provides 16 discrete input points arranged in two groups of eight. It accepts both sinking and sourcing 24 VDC signals, allowing it to interface with different field device wiring configurations.
Meanwhile, the operating voltage range varies with ambient temperature. The module supports 10-30 VDC at 30 deg C and 10-26.4 VDC at 60 deg C. Therefore, users should check the available field supply against the applicable temperature conditions.
Electrical Characteristics
The module has an 8 ms input delay for ON/OFF signal transitions. Its maximum off-state voltage is 5 VDC, while the maximum off-state current is 1.5 mA. These limits help determine whether a field signal meets the module’s input requirements.
Furthermore, the module draws 115 mA from the 5.1 VDC backplane supply and dissipates up to 3.55 W of heat. These values are relevant when checking the available power budget and thermal conditions of the I/O assembly.
Mounting and System Configuration
The 1769-IQ16 occupies one slot and supports DIN rail or panel mounting. Its open-style enclosure is intended for installation as part of an industrial control assembly.
The documented compatible power supply models are 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4. In addition, the module operates within an ambient temperature range of 0 to 60 deg C.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-IQ16 |
| Brand | Allen Bradley |
| Product Type | Digital Input Module |
| Product Line | CompactLogix |
| GTIN | 10662468992814 |
| UPC | 662468992817 |
| Number of Inputs | 16 |
| Input Grouping | 2 groups of 8 points |
| Nominal Input Voltage | 24 VDC |
| Voltage Category | 24 VDC Sink/Source |
| Operating Voltage Range | 10-30 VDC at 30 deg C; 10-26.4 VDC at 60 deg C |
| ON/OFF Input Delay | 8 ms |
| Maximum Off-State Voltage | 5 VDC |
| Maximum Off-State Current | 1.5 mA |
| Backplane Current Draw | 115 mA at 5.1 VDC |
| Maximum Heat Dissipation | 3.55 W |
| Slot Width | 1 slot |
| Mounting Options | DIN Rail or Panel Mount |
| Compatible Power Supplies | 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4 |
| Operating Temperature | 0 to 60 deg C |
| Enclosure Type | Open-Style |
| Weight | 0.28 kg (0.63 lbs) |
Frequently Asked Questions
Q: How many input channels does the 1769-IQ16 provide?
A: The module provides 16 digital input channels, divided into two groups of eight points.
Q: Does the 1769-IQ16 support both sinking and sourcing inputs?
A: Yes. It supports 24 VDC sinking and sourcing input configurations. The field wiring must match the selected input configuration.
Q: Which power supplies are compatible with the 1769-IQ16?
A: The documented compatible power supplies are 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4.
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