1794-IV32 PLC Discrete Input Module

1794-IV32 Discrete Input Module

The 1794-IV32 is a discrete input module that is part of Flex I/O platform. This module features Thirty-two (32) current sourcing input channels accepting 24 VDC nominal voltage input. This module has a FlexBus current draw of 40 mA @ 5V DC and is compatible for use with 1794-TB32, 1794-TB32S, 1794-TB62DS, and 1794-TB62EXD4X15 terminal base units.

1794-IV32 Specifications

Module Type:24 VDC Discrete input module
No. of Channels:thirty-Two (32)
Status indicators:32 yellow status indicator
No. of Inputs:Thirty-Two (32)
Wiring configuration:Sourcing
Maximum pollution level:Pollution Degree 2
Nominal input voltage:24 VDC
Maximum overvoltage level:Overvoltage Category II
Input voltage, nominal:24 VDC
Minimum On-state voltage:19.2 VDC
Mounting base:1794 Mounting Base
Input voltage range:19.2-31.2 VDC
Maximum On-state voltage:31.2 VDC
Altitude:6562 feet
On-state current, min:2.0 mA

1794-IV32 FAQ

Q: What is the minimum on-state voltage and current, and why does it matter?
A: The 1794-IV32 requires a minimum of 19.2 VDC at 2.0 mA to reliably detect an ON state. Any field signal below 19.2 VDC or with insufficient current capacity will not register. 

Q: Can this module be used in hazardous locations?
A: The module itself must be installed in an appropriate enclosure suitable for the hazardous area classification. For hazardous location installations, the 1794-TB62EXD4X15 terminal base is specifically designed for such environments. 

Q: What is FlexBus current draw, and why is it listed at 40 mA?
A: FlexBus current draw refers to the electrical current the module consumes from the FLEX I/O backplane's 5 VDC logic supply to power its internal electronics. At 40 mA, the 1794-IV32 is an efficient module, ensuring ample backplane power budget remains for additional modules in the same FLEX I/O assembly.