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The 1794-IV32 is a high-density 24V DC discrete input module designed for industrial automation systems requiring large-scale digital signal acquisition in a compact form.
It provides 32 independent sourcing input channels, allowing efficient collection of field device status signals such as switches, sensors, interlocks, and relay contacts.
This module is part of a modular distributed I/O architecture used in machine control, process automation, and large industrial systems where wiring reduction and scalability are critical.
The 1794-IV32 is designed to interface directly with industrial field devices and convert 24V DC electrical signals into digital logic signals for control systems.
Each of the 32 channels is independently monitored and includes LED status indicators for real-time diagnostics and maintenance support.
The module integrates into a FLEX I/O distributed system, enabling decentralized signal acquisition close to the process, reducing cabling complexity and improving system reliability.
It is commonly used in applications where a high number of digital inputs must be monitored in a compact control cabinet.
| Parameter | Specification |
|---|---|
| Input Channels | 32 discrete inputs |
| Input Type | 24V DC sourcing |
| Nominal Voltage | 24V DC |
| Input Voltage Range | 19.2 – 31.2V DC |
| On-state Voltage | 24V DC |
| Off-state Voltage | ~5V DC |
| Input Current | 4.1 mA typical @ 24V DC |
| Minimum On Current | 2.0 mA |
| Maximum On Current | 6.0 mA |
| Input Filtering | 0.25 ms to 32 ms selectable |
| Backplane Current | ~40 mA @ 5.1V |
| Power Consumption | approx. 6 W |
| Parameter | Specification |
|---|---|
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | -40 to 85 °C |
| Humidity | 5% to 95% non-condensing |
| Vibration Resistance | Industrial standard (up to 5 g) |
| Shock Resistance | Up to 30 g |
| Pollution Level | Industrial Pollution Degree 2 |
| Parameter | Specification |
|---|---|
| Width | 94 mm |
| Height | 94 mm |
| Depth | 69 mm |
| Weight | approx. 0.26 kg |
| Mounting Type | DIN rail / modular terminal base |
| Wiring Method | Screw terminal base system |
| Housing Type | Compact industrial module housing |
The 1794-IV32 is widely used in large-scale automation systems requiring dense digital input acquisition:
It is especially suitable for systems requiring large input point concentration with reduced cabinet space.
32 input points in a single module significantly reduce cabinet footprint and wiring workload.
Designed for reliable operation in electrically noisy industrial environments.
Supports fast digital signal detection suitable for dynamic industrial processes.
Can be combined with other FLEX I/O modules for mixed signal architectures.
Each channel has LED indicators for fast fault detection and system monitoring.
Adjustable filtering allows adaptation to different signal response requirements.
Distributed architecture minimizes long-distance wiring between field devices and control systems.
| Model | Description | Channels | Function Type | Voltage | Weight (kg) |
|---|---|---|---|---|---|
| 1794-IV16 | 16-point digital input module | 16 | Input | 24V DC | 0.09 |
| 1794-IB32 | 32-point sinking input module | 32 | Input | 24V DC | 0.25 |
| 1794-OB32P | Protected digital output module | 32 | Output | 24V DC | 0.28 |
| 1794-IA8 | AC input module | 8 | Input | 120/240V AC | 0.18 |
| 1794-IE8XT | Extended analog input module | 8 | Analog input | 4–20 mA | 0.20 |
| Model | Description | Channels | Function Type | Voltage | Weight (kg) |
|---|---|---|---|---|---|
| 1794-IB16 | Standard digital input module | 16 | Input | 24V DC | 0.15 |
| 1794-OB16 | Digital output module | 16 | Output | 24V DC | 0.16 |
| 1794-IE8 | Analog input module | 8 | Signal measurement | 4–20 mA | 0.18 |
| 1794-OF8 | Analog output module | 8 | Signal output | 4–20 mA | 0.19 |
| 1794-AENTR | Ethernet communication adapter | — | Network interface | 24V DC | 0.22 |
The 1794-IV32 is a high-density industrial digital input module designed for large-scale signal acquisition in distributed automation systems.
Its core strengths include:
It is widely used in industrial environments where efficient wiring, scalability, and high input point concentration are required.