Description

The Allen-Bradley 1794-IRT8 Flex I/O Combination Module is designed for industrial automation applications, offering precision thermocouple and RTD measurements. It supports multiple input types and offers fast data processing with high accuracy. This module is part of the FLEX I/O system, ideal for flexible and scalable control systems.

Key Specifications

• Product Type: Combination Module

• Inputs: 8

• Nominal Voltage: 24 Volts DC

• Mounting: DIN Rail

• Host System: FLEX I/O System

Performance

• Nominal Input Voltage Ranges:

• Thermocouples: -40 to 100 mV DC

• RTDs: 0 to 325 mV

• Resolution: 14 bits

• Accuracy:

• 0.05% of full range (mV mode with filtering selected)

• 0.10% of full range (hardware-only mV mode)

• Data Format:

• °C, °F, °K

• -32767 to +32767 (°C, °F, °K)

• 0 to 65535 (raw data, ? mode)

• 0 to 5000 (mV mode)

• -4000 to +10000 (mV mode)

• System Throughput:

• 7.4 ms (mV)

• 8.0 ms (2-wire RTD, °F)

• 8.0 ms (Thermocouples, °F)

• 10.0 ms (3-wire RTD, °C/°F/°K)

• 10.4 ms (4-wire RTD, °C/°F/°K)

Environmental Conditions

• Operating Temperature: 0 to 55°C (32 to 131°F)

• Storage Temperature: -40 to 85°C (-40 to 185°F)

• Vibration: 5g @ 10 to 500 Hz

• Operating Shock: 30g

Additional Information

• Indicators:

• 1 Green Power Status Indicator

• 8 Red Open Input Indicators

• Wire Size: Determined by installed terminal base

• Accessories: 2 Cold Junction Compensators