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- Allen Bradley
- 1769-IQ32K
- CompactLogix I/O Module
- USA
- 118 mm × 52.5 mm × 87 mm
- 0.97kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
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Technical Report: 1769-IQ32K Compact I/O 32-Point 24V DC Digital Input Module (Conformal Coated Version)
1. Product Overview
The 1769-IQ32K is a 32-point 24V DC digital input module designed for Compact I/O systems used in industrial automation environments.
It is a conformal-coated version of the standard 1769-IQ32 module, providing enhanced resistance to humidity, dust, and corrosive atmospheres. This makes it suitable for harsh industrial applications where standard electronic modules may degrade over time.
The module converts 24V DC field signals into PLC-readable digital logic signals and is commonly deployed in CompactLogix-based 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: 32-Point 24V DC Sink/Source Digital Input Module (Conformal Coated Version)
3. Product Function Description
The 1769-IQ32K is designed to monitor and process multiple discrete 24V DC signals from industrial field devices.
Core functions include:
- 32 digital input channels
- 24V DC sink/source compatible design
- Signal acquisition from sensors, switches, and relay contacts
- Conversion of field signals into PLC logic states
- LED status indication per channel
- Electrical isolation between field wiring and backplane
- Conformal coating for environmental protection
It is widely used in systems requiring both high channel density and environmental durability.
4. Technical Parameters
Electrical Specifications
| Parameter | Value |
|---|---|
| Number of Inputs | 32 channels |
| 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 | ~170 mA @ 5V DC |
| Power Dissipation | ~4.6 W |
| Input Delay | ~8 ms ON/OFF |
Performance Specifications
| Parameter | Value |
|---|---|
| Response Time | ~8 ms typical |
| Input Grouping | 4 groups × 8 channels |
| Signal Compatibility | Industrial 24V DC sensors and switches |
| Diagnostic Function | LED per channel |
| Switching Reliability | High industrial duty cycle |
Isolation & Protection
| Parameter | Value |
|---|---|
| Isolation Voltage | 1200V AC / 1697V DC (1s test) |
| Isolation Type | Input-to-bus reinforced isolation |
| Working Voltage | 75V DC reinforced insulation class |
| Protection Feature | Conformal coating (humidity, dust, corrosion resistance) |
| EMC Immunity | Industrial-grade noise resistance |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Dimensions (H × W × D) | 118 mm × 52.5 mm × 87 mm |
| Height with Tabs | 138 mm |
| Width | 52.5 mm |
| Depth | 87 mm |
| Weight | ~0.45–0.97 kg |
| Mounting Type | DIN rail / panel mount |
| Slot Width | 1.5 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 |
| Protection Level | Conformal-coated industrial grade |
5. Product Advantages
1. High Channel Density
32 input points significantly reduce cabinet space and simplify system architecture.
2. Harsh Environment Protection
Conformal coating improves resistance to moisture, chemical vapors, and dust.
3. Flexible Wiring Compatibility
Supports both sink and source wiring configurations.
4. Stable Signal Processing
Reliable detection of 24V DC ON/OFF signals in industrial environments.
5. Reduced System Cost
One module replaces multiple smaller input cards.
6. Strong Electrical Isolation
Protects PLC backplane from field-side electrical disturbances.
6. Application Areas
The 1769-IQ32K is widely used in:
- Chemical and petrochemical plants
- Food and beverage production lines
- Wastewater treatment facilities
- Outdoor electrical control cabinets
- Industrial automation systems with humidity exposure
- Conveyor and packaging systems
- Motor control interlock systems
- Factory-wide sensor monitoring networks
It is especially suitable for environments requiring both high signal density and environmental resistance.
7. Recommended Models (Same Series / Related Modules)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-IQ32 | Standard DC input | 32-point 24V DC | General automation |
| 1769-IQ16 | DC input module | 16-point input | Medium systems |
| 1769-IQ16K | Coated DC input | 16-point rugged version | Harsh environments |
| 1769-IQ16F | Fast DC input | High-speed response | Fast signals |
| 1769-IA16 | AC input module | 120/240V AC input | AC monitoring |
8. Other Popular Models (Same Platform – Widely Used)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-L33ER | PLC controller | EtherNet/IP CPU | Machine automation |
| 1769-L36ERM | Motion controller | High-speed CPU | Advanced control |
| 1769-AENTR | Ethernet adapter | Dual-port communication | Distributed I/O |
| 1769-SDN | DeviceNet scanner | Fieldbus master | Legacy systems |
| 1769-ASCII | Serial module | ASCII communication | Barcode/serial devices |
9. System Role Summary
The 1769-IQ32K functions as a high-density digital input module in Compact I/O architectures, designed to acquire large numbers of 24V DC discrete signals in harsh industrial environments.
Its conformal coating ensures stable long-term operation in environments where humidity, dust, or chemical exposure would normally degrade standard modules.
10. Summary
The 1769-IQ32K is a 32-point 24V DC digital input module with enhanced environmental protection. It combines high channel density, strong isolation, flexible wiring, and rugged durability.
Its key strengths include conformal coating protection, stable DC signal acquisition, compact design, and suitability for demanding industrial environments.