Configured for discrete logic scanning in programmable controller architectures, the Allen-Bradley 1746-IV16, also cataloged as the 1746IV16 Digital Input Module, provides direct physical/electrical execution.

Nomenclature and Part Identification

• Platform Family: 1746 (SLC 500 modular chassis format)
• Module Function: IV (DC digital sinking input module)
• Channel Density: 16 (Sixteen discrete input points per common terminal)

Hardware Specifications

Backplane Communication and I/O Density Integration

Operated within standard controller racks, the hardware executes backplane bus communication velocity frameworks to synchronize discrete inputs with central processing cycles. I/O density scaling allows simultaneous status polling across all 16 channels without introducing backplane latency. Furthermore, firm hardware register mapping ensures immediate firmware flash compatibility with legacy processor systems while preserving strict deterministic network timing rules.

Scope of Delivery Manifest

• 1 x Allen-Bradley 1746-IV16 Digital Input Module
• 1 x Removable Terminal Block (RTB) Connector
• 1 x Technical Compliance Documentation Insert

Mechanical Chassis Installation Guidelines

• Slot Insertion: Mount the module into any available I/O slot of a 1746 modular chassis, ensuring all rack power is switched off prior to physical insertion.
• Wiring Segregation: Route high-voltage power lines away from low-voltage DC input cabling to prevent electromagnetic induction across terminal blocks.
• Terminal Fastening: Secure all field wiring screw terminals firmly to maintain consistent electrical contact under high-vibration industrial environments.

Frequently Asked Questions

• What is the total number of discrete input channels managed by this module?

  The unit features 16 discrete sinking DC input points grouped under a common terminal.

• What is the allowable operating voltage range for input signals?

  The module accepts direct current voltage levels ranging from 10 VDC to 30 VDC sink configuration.

• How much backplane current does the module draw at 5 VDC?

  The module draws 0.085 A of current from the 5 VDC backplane power supply.

• Does this unit support hot-swapping inside energized racks?

  No, inserting or removing modules while rack power is applied is restricted to prevent electrical damage to backplane traces.

• What is the country of origin specified for this manufacturing run?

  The unit is manufactured in Malaysia according to standard production records.

• Are spare part variations compatible with this hardware platform?

  Yes, variant codes such as 1746-1V16 and revision suffixes like /A, /B, or /C represent equivalent form-fit alternatives.

• What physical dimensions apply to the transit packaging container?

  The estimated shipping dimensions measure 24.5 x 16.5 x 5.5 cm with a gross weight of 0.4 kg.

• How should field sensor lines be shielded against noise?

  Sensor cables should utilize twisted-pair wiring kept separate from high-voltage motor feeds to eliminate induced electrical noise.