Configured for deterministic network communication and node coordination within SLC 500 control architectures, the Allen-Bradley 1747-SCNR/A (1747-SCNR SLC ControlNet Scanner) provides direct physical electrical execution.

Nomenclature Breakdown & Model Matrix

• 1747: Base product family identifier designating Allen-Bradley SLC 500 modular hardware platforms.
• SCNR: Functional designator specifying a ControlNet scanner module configuration.
• /A: Major hardware revision level suffix indicating the initial production release line of the printed circuit board assembly.

Hardware Specifications

Industrial Control & Drive Interface Integration

Engineered for deterministic network execution, the module manages backplane bus communication velocities and supports ProFnets and EtherNet/IP deterministic network links. It provides precise I/O density scaling and firmware flash compatibility across integrated automation architectures.

Package Ordering Information

• 1 x 1747-SCNR/A SLC ControlNet Scanner unit
• 1 x BNC coaxial port termination cap set

Physical Installation & Cabling Guidelines

• Chassis Slot Placement: Insert the scanner module into any available I/O slot of a local SLC 500 chassis, ensuring firm engagement with backplane connector pins.
• Coaxial Cabling: Route ControlNet coaxial cables using proper BNC locking connectors, maintaining manufacturer-specified bend radii to preserve signal integrity.
• External Power Termination: Connect the external 24 VDC network power supply securely to the designated terminals, verifying correct polarity prior to system energization.

Frequently Asked Questions

• Q: What network protocol is supported by the 1747-SCNR/A module?

  A: The module is designed specifically for ControlNet industrial communication networks.

• Q: How many ControlNet communication ports are integrated on the front panel?

  A: The unit features two ControlNet ports equipped with standard BNC connectors.

• Q: What is the backplane current consumption drawn from the 5 VDC rail?

  A: The scanner draws 850 mA of current from the 5 VDC backplane power supply.

• Q: What external power supply is required for network operation?

  A: An external 24 VDC power source is required to supply the network medium.

• Q: What are the physical weight and estimated shipping dimensions?

  A: The unboxed module weighs 0.35 kg with shipping dimensions of 23.3 x 18.3 x 5.3 cm.

• Q: Which country is designated as the origin of manufacture?

  A: The hardware module is manufactured in the USA.

• Q: Can scanner modules be inserted or removed while backplane power is active?

  A: SLC 500 backplanes do not support live hot-swapping; power must be completely isolated before module installation or removal.

• Q: What is the allowable ambient operating temperature range?

  A: The unit functions reliably within an operating temperature boundary of 0 deg C to 60 deg C.