1794-IV32 FLEX I/O Discrete Input Module – High-Density 24V DC Sourcing Input
Brand: Allen-Bradley / Rockwell Automation
Series: Flex I/O 1794
Catalog No.: 1794-IV32
Type: 32-Channel 24 VDC Discrete Input Module
The 1794-IV32 is a high-density digital input module for the Flex I/O platform. It supports 32 current-sourcing channels with 24 VDC nominal voltage. Ideal for switches, sensors, and auxiliary contacts in distributed I/O topologies. Works with 1794-TB32, -TB32S, -TB62DS, and -TB62EXD4X15 terminal bases.
Key Features:
– 32 sourcing inputs (19.2–31.2 VDC operating range)
– FlexBus draw: 40 mA @ 5V DC
– Configurable filter times: 0.25 ms to 32 ms (8 steps)
– Yellow status LEDs per channel for quick diagnostics
– Pollution Degree 2 and Overvoltage Category II rated
Technical Specifications
| Inputs | 32 current-sourcing |
| Nominal Voltage | 24 VDC (range 19.2–31.2 VDC) |
| On-state Current | min 2.0 mA / nom 4.1 mA / max 6.0 mA |
| Filter Times | 0.25, 0.5, 1, 2, 4, 8, 16, 32 ms |
| Isolation | 50V continuous (tested @ 850V DC for 60s) |
| Backplane Current | 40 mA @ 5.1V DC |
| Dimensions | 3.7 x 3.7 x 2.7 in (94 x 94 x 68 mm) |
| Altitude | 6562 ft (2000 m) max |
| Wiring | Sourcing (PNP) |
| Compatible Bases | 1794-TB32, -TB32S, -TB62DS, -TB62EXD4X15 |
Installation & Maintenance
- Mounting: DIN rail (zinc-plated steel) with keyswitch alignment.
- Latching: Secure lock mechanism ensures firm seating.
- Cleaning: Use dry anti-static cloth; avoid liquids or caustic agents.
- Environment: Indoor use only, Pollution Degree 2, Overvoltage Cat II.
- Grounding: Chassis ground via DIN rail.
Compatibility & Controllers
- PLC-5, SLC 500, CompactLogix, ControlLogix – fully supported.
- FlexBus communication adapter required as header.
- Data transferred via Flex I/O bus to host controller.
- Default filter time: 0.25 ms (adjustable).
Diagnostics & Status
- 32 yellow status indicators – one per channel.
- LEDs show On/Off status and fault conditions.
- Filter selection eliminates noise and contact bounce.
Typical Applications
- Discrete input monitoring in control cabinets.
- Sensor and limit switch interfacing.
- Auxiliary contact feedback for motor starters.
- Distributed I/O nodes in PLC-based systems.
Why Buy From Oiltech Controls?
- Over 15 years of industrial automation spare parts expertise.
- Global shipping via FedEx, UPS, DHL – fast and reliable.
- Thoroughly tested surplus and refurbished options.
- 12-month warranty on all products.
- Technical verification before shipment – every unit checked.
- Support for obsolete and legacy control systems.
Contact us for inquiries:
📧 info@oiltechcontrols.com
📱 +86 158 8020 0923 (WhatsApp)
Packaging & Delivery
- Secure anti-static packaging.
- Shipping: FedEx, UPS, DHL (tracking provided).
- Delivery worldwide within 3–7 business days.
Certifications & Compliance
- UL, CE, and RoHS compliant.
- Designed for industrial environments.
- Isolation tested per IEC standards.
FAQ – Quick Answers
Q: What is the input voltage range?
A: 19.2–31.2 VDC (nominal 24 VDC).
Q: Can I use it with CompactLogix?
A: Yes, fully compatible with CompactLogix, ControlLogix, PLC-5, and SLC 500.
Q: What filter times are available?
A: Eight settings from 0.25 ms to 32 ms.
Q: Is the module sourcing or sinking?
A: Sourcing (PNP) configuration.
Q: What terminal bases work?
A: 1794-TB32, -TB32S, -TB62DS, -TB62EXD4X15.
Original Source: https://www.oiltechcontrols.com/
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