1794-IR8 Allen-Bradley Flex I/O Digital Input Module Rockwell Automation 1794 Series

Allen-Bradley 1794-IR8

RTD Input Module 8 Channel

1794-IR8 RTD Module

1794-IR8

The Allen-Bradley 1794-IR8 RTD Input Module 8 Channel provides precise temperature measurement with eight isolated RTD inputs, supporting multiple sensor types for industrial automation. Compatible with 1794 Flex I/O systems.

Specification

SEODescription

The Allen-Bradley 1794-IR8 RTD Module is an 8-channel RTD input module designed for high-precision temperature measurement in industrial automation. It supports direct connection to RTD sensors (e.g., Pt100, Pt200) with 16-bit resolution, enabling accurate data acquisition across all channels. Compatible with the 1794 FLEX I/O system, it integrates seamlessly with Allen-Bradley controllers via ControlNet or other Rockwell Automation platforms. The module operates at 10-30V DC and withstands industrial temperatures from -20°C to 60°C, making it ideal for harsh environments in process control, manufacturing, and energy industries. Its compact design allows high-density installations while maintaining noise immunity. Key advantages include easy daisy-chain connectivity and diagnostic LEDs, though it requires a dedicated backplane and Studio 5000 configuration software. The 1794-IR8 RTD Module excels in reliability but may require specialized expertise for calibration.

SEOSpecification

Parameter	Specification
Manufacturer	Allen-Bradley
Model	1794-IR8 RTD Module
Module Type	RTD Input Module 8 Channel
Channels	8 isolated inputs
Input Type	RTD (Resistance Temperature Detector)
RTD Compatibility	Pt100, Pt200, Pt500, Ni100, Cu10
Resolution	16-bit
Isolation	Channel-to-channel isolation
Power Consumption	60mA @ 5V DC
Operating Temp	-40°C to 70°C (-40°F to 158°F)
Mounting	1794 FLEX I/O system
Certifications	UL, CE, ATEX, IECEx
Backplane Compatibility	1794-AENT, 1794-TB3, 1794-TB3S

SEOQandA

question:Can I schedule official courier self-pickup?
answer:Yes, self-pickup can be arranged via our official courier partners. Contact support for details.
question:Can you provide upgraded or alternative models?
answer:Yes, upgraded or alternative models are available upon request. Consult sales for options.
question:What payment methods do you accept?
answer:We accept credit cards, bank transfers, and PayPal. Terms vary by order.

SEOQandA_Product

question:Why is the 1794-IR8 module not communicating with the PLC?
answer:Check power supply, wiring connections, and configuration settings. Ensure the module is properly recognized in the PLC software.
question:How to resolve erratic input readings on the 1794-IR8?
answer:Verify wiring integrity, eliminate ground loops, and ensure proper shielding. Calibrate input channels if necessary.
question:Why does the 1794-IR8 show a configuration error?
answer:Confirm DIP switch settings match the configured input type (RTD/TC). Re-download the configuration to the module.
question:How to troubleshoot a 1794-IR8 with no power indication?
answer:Check terminal block connections, verify 24V DC supply voltage, and inspect fuse or chassis power distribution.
question:What causes the 1794-IR8's status LED to flash red?
answer:Indicates module fault (e.g., overrange, open circuit). Check sensor connections and review diagnostic data in PLC software.