The Allen-Bradley 1746-IB16 is a robust SLC 500 digital input module. This unit provides sixteen sinking channels for 24VDC signals. It interfaces reliably with pushbuttons, limit switches, and proximity sensors. Engineers trust this module for its proven performance in industrial control.
Theme A: Product Procurement & Buyer Guide
Procurement managers need precise specifications for system upgrades. The 1746-IB16 accepts a wide voltage range from 10 to 30VDC. This flexibility ensures compatibility with various field devices. Each channel draws a nominal current of 8mA at 24VDC. The module consumes only 85 milliamps from the 5VDC backplane. This low power draw minimizes strain on your chassis power supply.
The module groups all sixteen inputs into a single common group. This design simplifies wiring for general-purpose DC applications. You can mount it in any available slot of a 1746 chassis. The unit supports both local and remote I/O configurations. It works with SLC 500 CPUs and 1746 communication adapters. This flexibility allows for scalable system architecture.
Application engineers benefit from the module’s clear status indicators. Each channel has an LED that shows its on or off state. This feature simplifies troubleshooting during commissioning and operation. The removable terminal block (RTB) allows for quick module swaps. You can replace the unit without disconnecting field wiring. This saves valuable time during maintenance or upgrades.
Installation & Technical Specifications
The 1746-IB16 uses a sinking wiring configuration exclusively. You must connect the DC common to the module’s common terminal. Each input channel accepts a signal from a sourcing device. The module provides electro-optical isolation at 1500 volts. This isolation protects the backplane logic from field transients.
The module offers a consistent signal delay of 8 milliseconds. This delay applies to both on and off transitions. The off-state voltage must not exceed 5.0VDC. The off-state current is limited to a maximum of 1 milliamp. These parameters ensure clean signal detection and noise immunity. The module meets NEMA ICS 2-230 standards for electrical noise.
Environmental ratings make this module suitable for harsh conditions. It operates reliably in temperatures from 0 to 60 degrees Celsius. The unit withstands 30G of operational shock. It also handles 2.5G of vibration at frequencies from 57 to 200 Hz. These ratings ensure dependable operation in heavy industrial environments.
Logistics & Standard Packaging Details
- One Allen-Bradley 1746-IB16 SLC 500 input module
- One Removable Terminal Block (RTB) for field wiring
- Installation and wiring instruction sheet
- Product is packaged in an anti-static protective bag
- Express delivery shipping is available via FedEx, UPS, and DHL
