Overview
Manuals
Application Details
Configuration
Features:
- Allen Bradley's SLC 500 series, is an input module specifically designed for digital signaling
- This component supports 16 current sinking inputs, operating within a voltage range of 10 to 30 volts DC
- In terms of thermal performance, the module exhibits a total heat dissipation of 3.6 watts during operation
The Allen Bradley 1746-IB16 is an input module in the SLC 500 series, enabling efficient digital communication. This module manages 16 input channels and is configured as current-sinking inputs for seamless integration into various control environments. Its permissible operating voltage range is 10V to 30V DC, making it flexible for diverse applications. Each input channel consumes 0.2 watts, with a minimum reference power consumption of 0.425 watts. Notably, the backplane current consumption is 0.05 amps at 5V DC and 0 amps at 24V DC.
Furthermore, this input module features a maximum signal delay of 8 milliseconds, crucial for applications requiring rapid input response. The module uses removable terminal blocks for easy installation, maintenance, and wiring modifications. The UPC barcode on the module is 662468067041 for easy inventory management and ordering.
The 1746-IB16 Allen Bradley SLC 500 16 Point DC Input Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen Bradley 1746-IB16 SLC 500 16 Point DC Input Module Manuals(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
1. Factory Automation and Material Handling:
Conveyor and Sorting Lines: This module acts as the primary data receiver for photoelectric sensors, proximity switches, and reflective sensors, used to detect product presence, count package quantities, and track carton positions on the conveyor belt.
Packaging and Filling Equipment: This module acquires high-speed mechanical positioning trigger signals from limit switches and positioning sensors to ensure precise timing of container filling, capping, and carton sealing operations.
Palletizing and Sorting Robots: This module monitors vacuum pressure switches and robotic arm safety buffers to coordinate precise pick-and-place logic.
2. Machine Tools and Metal Processing:
CNC Machine Tools and Metal Stamping Presses: This module continuously checks the positions of hydraulic cylinder limit sensors, mold protection sensors, and safety door interlocks before authorizing the CPU to execute high-tonnage stamping piston operations.
Automated Assembly Stations: This module reads status inputs from cylinder reed switches, part presence sensors, and part feeder low-position switches to coordinate automatic pick-and-place positioning turntables.
3. Critical Process Control Infrastructure
Water and Wastewater Treatment: This module connects to dry-contact discrete float switches, high/low level switches, and pump start/stop feedback status indicators to automate remote pumping stations.
HVAC and Building Utility Management: This module reads flow switch status, air filter differential pressure trigger signals, and flue damper open/close indicator microswitches to ensure facility environmental safety.
Mining and Bulk Material Handling: This module connects to pull-wire conveyor switches, belt misalignment switches, and chute blockage sensors to immediately initiate emergency shutdowns in case of heavy machinery misalignment or malfunction, ensuring safety during hazardous operations.
1. Hardware Placement and I/O Addressing: Chassis Alignment: With the system power completely isolated, insert the module into any available slot in the SLC 500 modular chassis (slots 1 through 30, slot 0 reserved for the processor).
Fixed Data Structure: After placement, the RSLogix 500 automatically generates a fixed 16-bit input word based on its slot number. For example, if the module is in slot 3, channel 0 is addressed as I:3/0, and channel 15 is addressed as I:3/15.
Static Filtering: Unlike newer platforms with adjustable software debouncing, this module features an 8ms hardwired input signal delay for both ON and OFF transitions to suppress contact bounce and line noise.
2. Sinking Input Electrical Configuration: Source-Level Field Device Rule: 1746-IB16 is strictly speaking a module that only supports sinking current. It requires the use of a PNP type field sensor or dry contacts to switch the positive voltage rail (+24V DC) to the channel terminal.
Common Terminal Connection: To complete the circuit, the terminal marked "DC COM" (or "Common") on the module's front panel terminal block must be directly connected to the negative terminal (-24V DC) of the external field power supply.
Voltage Limitation: The field loop must provide a nominal 24V DC signal. The hardware can detect conduction between 10V and 30V DC and guarantees cutoff between 0V and 5V DC.
