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- 1769-IQ16
- CompactLogix I/O Module
- USA
- 118 mm × 35 mm × 87 mm
- 0.27kg
- Xiamen, China
- New & In Stock
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Technical Report: 1769-IQ16 Compact I/O 16-Point 24V DC Digital Input Module
1. Product Overview
The 1769-IQ16 is a Compact I/O digital input module designed for industrial PLC systems that require reliable acquisition of 24V DC discrete signals.
It provides 16 DC input channels, arranged in two groups of eight points each, and is widely used in CompactLogix and Compact I/O architectures for monitoring sensors, switches, and field devices.
This module is one of the most commonly deployed digital input solutions in industrial automation due to its stability, simple wiring, and strong compatibility with standard 24V DC control systems.
2. Brand and Series Information
Brand: Industrial automation control platform ecosystem
Series: 1769 Compact I/O Series
Product Family: DC Digital Input Modules
Module Type: 16-Point 24V DC Sink/Source Input Module
3. Product Function Description
The 1769-IQ16 is designed to detect ON/OFF status signals from industrial field devices and convert them into PLC-readable digital logic signals.
Core functions include:
- 16 DC digital input channels
- 24V DC sink/source compatible input design
- Two input groups (8 points per group)
- Signal conversion from field devices to PLC logic states
- LED status indication per channel
- Electrical isolation between field inputs and backplane
- Fast response time for industrial switching signals
It is typically used for monitoring discrete signals such as sensors, push buttons, and relay contacts.
4. Technical Parameters
Electrical Specifications
| Parameter | Value |
|---|---|
| Number of Inputs | 16 points (8 per group) |
| Input Voltage Range | 10–30V DC |
| Nominal Voltage | 24V DC |
| Off-state Voltage | ≤5V DC |
| On-state Voltage | ≥10V DC |
| Input Type | Sink/Source DC digital input |
| Backplane Current | ~115 mA @ 5.1V DC |
| Inrush Current | Up to 250 mA |
| Power Dissipation | ~3.55 W |
| Input Delay | ~8 ms ON / OFF |
Performance Specifications
| Parameter | Value |
|---|---|
| Response Time | ~8 ms typical |
| Input Impedance | ~3 kΩ nominal |
| Signal Compatibility | IEC Type 1+ input class |
| Switching Reliability | High industrial duty cycle |
| Diagnostic Function | Channel LED status indication |
Isolation & Protection
| Parameter | Value |
|---|---|
| Isolation Voltage | 1200V AC / 1697V DC (1s test) |
| Working Voltage | 75V DC (IEC reinforced class) |
| Isolation Type | Input-to-bus + group isolation |
| Protection Design | Industrial reinforced insulation |
| EMC Resistance | High industrial noise immunity |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Dimensions (H × W × D) | 118 mm × 35 mm × 87 mm |
| Height with Tabs | 138 mm |
| Width | 35 mm |
| Depth | 87 mm |
| Weight | ~0.27 kg |
| Mounting Type | DIN rail / panel mount |
| Slot Width | 1 slot |
| Terminal Type | Removable terminal block |
Environmental Specifications
| Parameter | Value |
|---|---|
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5% – 95% non-condensing |
| Vibration Resistance | Industrial IEC standard |
| Shock Resistance | Up to 15G |
| Enclosure Type | Open-style industrial module |
5. Product Advantages
1. High Channel Density
16 input points in a single module reduce cabinet space and simplify system layout.
2. Universal DC Compatibility
Supports both sink and source wiring methods, improving flexibility in field wiring design.
3. Fast Response Time
8 ms switching speed ensures reliable detection of fast-changing digital signals.
4. Strong Electrical Isolation
High dielectric strength improves safety and system stability in industrial environments.
5. Easy Maintenance
LED indicators per channel simplify troubleshooting and reduce downtime.
6. Proven Industrial Reliability
Widely used in manufacturing and process control systems with long-term stability.
6. Application Areas
The 1769-IQ16 is widely used in:
- Industrial automation control systems
- Motor control panels
- Conveyor system monitoring
- Pump and valve status detection
- Machine safety interlock systems
- Packaging machinery
- HVAC control systems
- General-purpose PLC digital signal acquisition
It is especially suitable for systems requiring large numbers of discrete 24V DC signals.
7. Recommended Models (Same Series / Related Modules)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-IQ32 | 32-point DC input | High-density digital input | Large systems |
| 1769-IQ16K | DC input variant | Enhanced diagnostics | Industrial monitoring |
| 1769-IA16 | AC input module | 120/240V AC input | AC signal systems |
| 1769-IM12 | 240V AC input | High-voltage AC input | MCC panels |
| 1769-OB16 | DC output module | 16-point transistor output | Actuator control |
8. Other Popular Models (Same Platform – Widely Used)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-L33ER | PLC Controller | EtherNet/IP CPU | Machine automation |
| 1769-L36ERM | PLC Controller | Motion control CPU | Advanced systems |
| 1769-AENTR | Ethernet Adapter | Dual-port network | Distributed I/O |
| 1769-SDN | DeviceNet Scanner | Fieldbus master | Legacy integration |
| 1769-ASCII | Serial Module | ASCII communication | Barcode / serial devices |
9. System Role Summary
The 1769-IQ16 serves as a core digital input acquisition module in Compact I/O systems. It collects 24V DC discrete signals from field devices and converts them into PLC logic for real-time control and monitoring.
Its role is essential in almost all industrial automation architectures where discrete signal density is high.
10. Summary
The 1769-IQ16 is a 16-point 24V DC digital input module designed for reliable industrial signal acquisition. It offers fast response, high channel density, flexible wiring, and strong electrical isolation.
Its key strengths include stable performance, universal DC compatibility, compact design, and wide industrial applicability.