Allen Bradley 1769-IR6 Programmable Logic Controller PLC 6 Channel RTD

I. Basic Information

• Brand / Series: Allen-Bradley (Rockwell Automation) Compact I/O Series

• Product Type: 6-Channel RTD / Resistance Analog Input Module

• Applicable Controllers: CompactLogix 1769, MicroLogix 1500, etc.

• Lifecycle: Active Mature (Mature and in production, continuous supply)

• Core Applications: High-precision temperature acquisition (RTD) and resistance signal measurement

II. Channel and Signal Specifications

• Number of Channels: 6 independent differential inputs

• Supported Sensors:

◦ RTD: 2-/3-/4-wire (Pt100, Pt1000, Ni120, Cu10, etc., software configurable)

◦ Direct Resistance: 0–150Ω, 0–500Ω, 0–1000Ω, 0–3000Ω

• Measurement Range (RTD): Typical -200°C ~ +600°C (depending on sensor type)

• Resolution: 0.1°C (temperature); 16-bit ADC

• Accuracy: ±0.1% full scale ±1 bit

• Excitation Current: 0.5mA / 1.0mA Programmable (self-heating suppressed) Rockwell Automation

• Diagnostics: Supports open circuit, short circuit, over-range, and under-range detection and indication per channel

III. Electrical and Isolation

• Power Supply: 5.1V DC (100mA), 24V DC (45mA); Total power consumption approximately 1.5W

• Isolation: Channel-bus 720V DC (1 minute); Channel-channel ±10V DC

• Input Impedance: >10 MΩ

• Common Mode Rejection: 110 dB @ 50/60 Hz

• Maximum Cable Impedance: 25 Ω

IV. Physical and Environmental

• Mounting: 35mm DIN rail; rack-free

• Dimensions: 1.38 × 3.43 × 4.65 inches (35 × 87 × 118 mm)

• Weight: Approx. 0.25 kg

• Operating Temperature: 0°C ～ 60°C

• Storage Temperature: -40°C ～ 85°C

• Protection: Open enclosure; suitable for NEMA 1/12/13 environments

• Vibration/Shock Resistance: Compliant with IEC 61131-2 industry standard

V. System and Programming

• Communication: Communicates with the controller via 1769 local bus

• Programming Software: RSLogix 5000 / Studio 5000 Logix Designer

• Functions: Onboard linearization, range scaling, input filtering, automatic calibration (Rockwell Automation)

• Terminals: Removable terminal blocks (RTB)