| 1794-IB32 | PRODUCT | CONTACT | FAQ | SERVICE | RECOMMENDED |
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FLEX I/O · DIGITAL INPUT
DISTRIBUTED CONTROL ARCHITECTURE
1794-IB32
32 Point Digital Input Module
A high-density FLEX I/O digital input module providing 32 current-sinking inputs for 24V DC field devices. Its compact architecture is intended for distributed industrial control and monitoring applications.
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CORE CONFIGURATION
32 POINT
Digital DC Inputs
FIELD VOLTAGE
24V DC
INPUT TYPE
SINKING
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02 / TECHNICAL CORE
1794-IB32
The 1794-IB32 is a 32-channel FLEX I/O digital input module intended for 24V DC field signals. Its input circuitry is grouped for field-side wiring and interfaces with the FLEX I/O system through the Flexbus.
SYSTEM ROLE
Distributed digital input acquisition
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SYSTEM CONNECTION
Terminal Base Architecture
The 1794-IB32 is used with compatible FLEX I/O terminal bases. The module and terminal-base arrangement separates the field wiring interface from the removable electronics module, supporting practical maintenance in distributed I/O installations.
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16 POINT
1794-IB16
24V DC digital input module.
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32 POINT
1794-IB32
32-point 24V DC sinking input module.
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32 POINT
1794-IV32
32-point 24V DC sourcing input module.
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OUTPUT
1794-OB32P
32-point 24V DC protected output module.
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1794-IB32 / SALES SUPPORT
Need a Replacement or Availability Check?
Send the exact part number together with your quantity, destination and required date. For a replacement project, including the existing controller and terminal-base details can help with configuration checking.
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| 01 |
Can 1794-IB32 be considered when replacing a 32-point digital input module in an existing FLEX I/O installation?
Yes, when the existing architecture calls for a 32-point, 24V DC sinking input module. Before replacement, the terminal base arrangement, field wiring, controller/interface configuration and environmental requirements should be checked because the 1794-IB32 is specifically a current-sinking 24V DC input module.
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| 02 |
What field-device conditions should be checked before ordering 1794-IB32?
The field device should be compatible with the module's 24V DC sinking-input characteristics. The published on-state range is 19.2 to 31.2V DC, with nominal input current of 4.1 mA. The field circuit should also remain within the specified off-state voltage and current limits.
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| 03 |
Does 1794-IB32 work with the same FLEX I/O terminal-base family as other 1794 modules?
The 1794-IB32 is specified with the 1794-TB3Z and 1794-TB3ZS terminal bases in the FLEX I/O selection documentation. The exact terminal-base arrangement should be checked against the installation already in use before purchasing a replacement module.
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Why would 1794-IB32 be selected instead of 1794-IV32 in a replacement project?
The key distinction is the input arrangement. 1794-IB32 is a 24V DC sinking-input module, whereas 1794-IV32 is a 24V DC sourcing-input module. The replacement must match the electrical relationship between the field devices, common wiring and input circuit.
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Can 1794-IB32 be used where channel-level isolation is required?
The published specification provides 50V continuous isolation between the field side and system, with basic insulation, but there is no isolation between individual input channels. Therefore, an application requiring channel-to-channel isolation should not assume that 1794-IB32 provides that arrangement.
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