Overview
The Allen Bradley 1746-IB32 is a digital input module for the SLC 500 programmable logic controller (PLC) series. It enables reliable monitoring of DC signals from field devices, supporting high-speed input scanning and accurate status detection in industrial automation applications.
General Information
Part Number: 1746-IB32
Manufacturer: Allen Bradley
Brand / Country of Origin: Allen Bradley / USA
Series: SLC 500
Type: DC Digital Input Module
Mounting: DIN rail or rack installation in SLC 500 chassis
Technology: DC signal monitoring, opto-isolated inputs, high-speed scanning
Power Specifications
Supply Voltage: 24 V DC
Power Consumption: ≤ 4 W
Input: Powered via SLC 500 backplane
Protection: Input surge and short-circuit protection
Indicators: LEDs for channel status, module power, and fault detection
Communication & Interface
Bus Interface: Backplane communication with SLC 500 CPU
Input Channels: 32 DC digital input channels
Diagnostics: Channel monitoring, error detection, and fault reporting via CPU
Operator Interface: LED indicators for each channel and module status
Reset Features: Supports CPU and software-initiated reset
Environmental
Operating Temperature: 0 to +60 °C
Storage Temperature: −20 to +85 °C
Humidity: 5% to 95% RH, non-condensing
Protection Rating: Standard industrial enclosure (IP20)
Dimensions & Weight
Dimensions (L × W × H): 144.5 × 34.6 × 130.18 mm
Weight: 0.27 kg
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