A-B 1746-IB16

The Allen-Bradley 1746-IB16 is a digital input module that is widely used in industrial control systems. Here is its detailed product description: 1. **General Information**:    - **Manufacturer**: Rockwell Automation. The brand is known for its high-quality industrial automation products, and the 1746-IB16 is a part of their reliable product line.    - **Sub Brand**: SLC, which stands for the Small Logic Controller series. This module is designed to work seamlessly with the SLC 500 programmable controller system.    - **Catalog Number**: 1746-IB16, which is a unique identifier for this specific product. 2. **Input Specifications**:    - **Number of Input Channels**: It has sixteen (16) discrete input channels, allowing it to receive multiple digital input signals simultaneously. These channels are grouped into one (1) input group and share a common terminal.    - **Input Voltage Range**: The module is a DC sinking input type and operates within a voltage range of 10V to 30V DC, making it compatible with a wide range of DC voltage input signals commonly found in industrial applications.    - **Nominal Input Current**: At a nominal input voltage of 24V DC, the module has a nominal input current of 8mA. The low power consumption of each input channel helps in reducing the overall power requirements of the system.    - **Maximum Leakage Current**: The maximum leakage current of the module is 1mA, ensuring that the input signals are accurately detected with minimal interference from leakage currents. 3. **Performance Characteristics**:    - **Signal Delay Time**: The on and off transition signal delay time of the 1746-IB16 is a maximum of 8 milliseconds, which is relatively fast and allows for quick response to input signal changes. This is crucial in industrial processes where timely detection and response to events are essential.    - **Voltage Drop**: In the off state, the maximum voltage drop across the module is 5V DC, which helps in maintaining the stability of the input signals and ensuring accurate signal detection even in the presence of voltage fluctuations.    - **Thermal Dissipation**: Each input point has a net thermal dissipation of 0.22W, and the total thermal dissipation of the entire module is 3.6W. This information is important for thermal management in the control system, especially when multiple modules are installed in a confined space. 4. **Physical Characteristics**:    - **Dimensions**: The module has dimensions of 24.5 x 16.5 x 5.5 cm, which makes it suitable for installation in standard industrial control cabinets and racks. Its compact size allows for efficient use of space in the control system.    - **Weight**: It has a weight of 0.4 kg, which is lightweight enough for easy handling during installation and maintenance.    - **Mounting Type**: It is a chassis-mounted module, which means it can be easily installed in any available I/O slot of the 1746 chassis. This provides flexibility in configuring the control system and allows for easy expansion by adding more input modules as needed. 5. **Communication and Integration**:    - **Communication Interface**: The module uses a standard communication protocol to communicate with the SLC 500 controller and other modules in the system. This enables seamless data transfer and integration with the overall industrial automation system, allowing for real-time monitoring and control of the industrial process.    - **Compatibility**: It is compatible with any SLC 500 chassis, ensuring that it can be easily integrated into existing SLC 500 control systems without the need for extensive modifications or additional hardware. 6. **Indicators and Diagnostics**:    - **Status LEDs**: The module is equipped with status LEDs for each input channel, which provide indication of the activation status of each input. This simplifies monitoring and troubleshooting, allowing operators to quickly identify any issues with the input signals and take appropriate actions. 7. **Environmental Specifications**:    - **Operating Temperature Range**: The module can operate in a temperature range of 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit), making it suitable for use in a wide range of industrial environments. However, it is important to ensure that the ambient temperature does not exceed the specified range to maintain the reliability and performance of the module.    - **Storage Temperature Range**: When not in use, the module should be stored in a temperature range of -40 to 85 degrees Celsius (-40 to 185 degrees Fahrenheit). This allows for safe storage and transportation of the module in various environmental conditions.    - **Humidity Range**: It can operate in a relative humidity range of 5 to 95%, which is suitable for most industrial environments where humidity levels may vary. 8. **Certifications and Compliance**:    - **Safety Certifications**: The 1746-IB16 has passed various safety certifications, such as UL, CSA, and CE. These certifications ensure that the module meets the safety standards and regulations required for use in industrial applications, providing protection to operators and the equipment.    - **Noise Immunity**: It has a NEMA standard ICS2-230 rated noise immunity, which means that it can withstand the electromagnetic interference and noise commonly found in industrial environments without affecting its performance. 9. **Wiring and Terminals**:    - **Wiring Configuration**: The module supports only sink wiring configuration, which is commonly used in industrial control systems for connecting input devices such as limit switches, proximity switches, button devices, and the auxiliary contacts of relays, contactors, and other electronic devices.    - **Removable Terminal Blocks**: It features removable terminal blocks, which make it easy to terminate and replace the module. This simplifies the installation and maintenance process, reducing downtime and improving the overall efficiency of the control system.