Allen-Bradley 1794-IV32
Allen-Bradley 1794-IV32
Allen-Bradley 1794-IV32
Allen-Bradley 1794-IV32
Allen-Bradley 1794-IV32
Allen-Bradley 1794-IV32
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1794-IV32

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The 1794-IV32 is a Rockwell Automation FLEX I/O digital sourcing input module with 32 inputs, 24V DC (19.2-31.2V), 32 status indicators, and a compact3.5x13x14.5cm form factor.
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Technical specifications for 1794-IV32

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1794-IV32
  • Product Family:
    Flex I/O
  • Product Type:
    Input Module
  • Stock:
    1
  • Number of Inputs:
    32
  • Input Type:
    Sourcing (PNP)
  • External DC Supply Voltage Range:
    19.2...31.2V DC (includes 5% AC ripple)
  • Nominal Voltage:
    24V DC
  • Status Indicators:
    32 yellow LEDs
  • Keyswitch Position:
    2
  • Operating Temperature:
    0 to 55°C (32 to 131°F)
  • Storage Temperature:
    -40 to 85°C (-40 to 185°F)
  • Radiated RF Immunity:
    10 V/m
  • North American Temp Code:
    T4
  • ESD Immunity:
    6 kV contact, 8 kV air
  • Weight:
    0.14 kg
  • Estimated shipping dimensions:
    3.5x13x14.5cm
  • Tariff Code:
    8517795000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Operating Environment Monitoring and Control

Features:

  • Provides 32 NPN outputs in a compact 94 mm module, saving panel space and reducing module count.
  • Accepts 10...31.2V DC (including 5% AC ripple), accommodating industrial power supply variations and battery-backed systems.
  • Rated for 0-55°C operation, 5g vibration, 30g shock, with ESD immunity (6kV/8kV) and 10V/m radiated RF immunity.
The 1794-IV32 packs 32 discrete sinking output channels into a module measuring just 94 x 94 x 69 mm. This high density is a significant advantage for control panels with limited space. In a typical FLEX I/O system, a 16-point output module would require two modules to achieve 32 outputs, consuming two terminal bases, two backplane positions, and twice the panel area. The 1794-IV32 reduces this to one module, one terminal base, and one slot. Each output is rated at 0.5A at 10-31.2V DC, sufficient for controlling small solenoids, indicator lights, relay coils, and PLC inputs directly without external interposing relays.

The 1794-IV32 operates from 10 to 31.2V DC, including up to 5% AC ripple. This wide range provides several practical advantages in industrial environments. First, it accommodates typical 24V DC power supplies with their natural output variation (e.g., 22-28V). Second, it supports 12V DC systems (common in older control panels or battery-powered equipment) as long as the voltage stays above 10V. Third, the tolerance for 5% AC ripple means the module will function correctly even if the DC supply has residual ripple from insufficient filtering – a common issue when adding I/O to an existing power supply.

The 1794-IV32 is designed to survive in demanding industrial environments. It operates over a temperature range of 0 to 55°C (32 to 131°F), allowing installation in control cabinets without air conditioning in many climates. For storage or transportation, it withstands -40 to 85°C (-40 to 185°F). Vibration resistance is 5g at 10-500 Hz – suitable for mounting near rotating machinery or on movable equipment. Shock tolerance is 30g operating and 50g non-operating, providing resilience against impacts during installation or machine operation.

The 1794-IV32 Allen-Bradley Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

Allen-Bradley 1794-IV32 Input Module Manuals, Datasheets,Drivers,Link Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
Allen-Bradley 1794-IV32 Input Module Specs

General

  • Manufacturer Allen-Bradley
  • Model 1794-IV32
  • Condition New Original ready stock
  • Product Family 1794-OB32,1794-OV16,1794-OB16
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
  • Machinery and Process Control: Collects signals from sensors, limit switches, buttons, and photoelectric switches, suitable for packaging machinery, assembly lines, and material handling systems.
  • Distributed I/O Systems: Serves as remote stations in large factories, transmitting field signals back to the main PLC (such as ControlLogix or CompactLogix) via networks such as EtherNet/IP, ControlNet, or DeviceNet.
  • High Space Utilization Requirements: Provides 32 inputs per module, significantly reducing the space occupied by guide rails in the cabinet.
  • Relative Humidity: 5% to 95% (non-condensing).
  • Shock Resistance and Isolation: Resistant to operational shocks up to 30g. The module provides a continuous 50V isolation voltage (between the field and system ends) to protect the PLC internal wiring from external surges.
  • Protection Rating: Must be installed in an industrial-standard rack to prevent dust and moisture.
  • The panel is equipped with 32 status indicators. When a valid signal is input to the corresponding channel, the indicator light illuminates, facilitating quick troubleshooting by on-site technicians.
  • Hot-Swap (RIUP): Supports "hot-plugging," allowing the control system to maintain network communication without downtime when changing modules during system operation.
  • Diagnostic Feedback: Modules can transmit their operational status (such as communication abnormalities or configuration errors) to the PLC controller in real time, which is then displayed on the software diagnostic screen.
Description
The 1794-IV32 is a FLEX I/O digital input module from Rockwell Automation. It provides 32 sourcing (PNP) inputs for interfacing with field devices such as pushbuttons, limit switches, and proximity sensors. The module operates on an external DC power supply ranging from 19.2 to 31.2V DC (nominal 24V). It has 32 yellow status LEDs for channel indication. The keyswitch position is 2.

When using the 1794-IV32, engineers benefit from high-density input capability (32 points) in a compact module. The module requires a terminal base (ordered separately) and connects to the FLEX I/O backplane. It is designed for industrial environments with an operating temperature of 0 to 55°C and storage from -40 to 85°C. 

The 1794-IV32 is vibration tested to 5g at 10-500Hz and shock tested to 30g operating / 50g non-operating. EMC compliance includes ESD immunity (6kV contact, 8kV air) and radiated RF immunity (10V/m). The module is open-style (IP20) and must be installed in a suitable enclosure. Wiring category is 2 on signal ports.

For legacy ControlLogix or FLEX I/O system expansions, the 1794-IV32 provides a reliable sourcing input solution. It is compatible with FLEX I/O terminal bases (e.g., 1794-TB3 or 1794-TB3S). The module has a North American temp code of T4. Always verify that your controller supports 1794 series I/O modules.
Revisions

Revision Part #

Also known as

1794-IV32 Ser A
1794-IV32/A, Series A, Rev A
Alternative Names
1794-IB32 1794-IV16 1794-IB16
Technical notes
The 1794-IV32 is a sourcing (PNP) input module. When a field device (e.g., pushbutton or proximity sensor) closes, it connects the input terminal to the positive side of the external DC supply. The input circuit is designed for use with 3-wire PNP sensors or dry contacts connected to +24V.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Is the 1794-IV32 sourcing or sinking?
The 1794-IV32 is a sourcing (PNP) input module. The input circuit requires the field device to switch the positive side of the DC supply to the input terminal. For sinking (NPN) applications, use 1794-IB32.
How many inputs does the 1794-IV32 provide?
The 1794-IV32 provides 32 sourcing inputs. This high density reduces the number of modules and terminal bases needed, saving significant panel space. Each input has a yellow status LED.
Which terminal bases work with the 1794-IV32?
The 1794-IV32 requires a FLEX I/O terminal base such as 1794-TB3 (screw) or 1794-TB3S (spring). The keyswitch position must be set to position 2. The module mounts onto the base after the base is wired. The base is ordered separately.
What voltage range does the 1794-IV32 accept?
The 1794-IV32 accepts 19.2 to 31.2V DC (nominal 24V), including 5% AC ripple. This wide range accommodates power supply variations, cable voltage drop, and ripple from poorly filtered supplies, reducing the risk of input misreading.

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