Allen-Bradley 3170-MBS FLEX I/O Modbus Slave Network Interface Adapter

Product Description

Configured for Modbus slave communication in a FLEX I/O network, the Allen-Bradley 3170-MBS (3170-MBS Modbus Slave Network Interface Adapter) provides direct physical and electrical data exchange between a Modbus network and compatible distributed I/O equipment. The adapter operates from an external 12 VDC to 24 VDC supply and occupies a single slot. It also draws 20 mA at 5 V from the backplane.

Hardware Specifications

Industrial Network and Backplane Communication

The Allen-Bradley 3170-MBS functions as a network interface component for Modbus slave communication within the FLEX I/O 1794 platform. The module exchanges network data with the connected I/O architecture through its installed hardware interface and backplane connection.

The external power supply supports operation from 12 VDC to 24 VDC, while the module backplane load is specified as 20 mA at 5 V. Its LED status indicator provides local operating status information. Therefore, installation personnel can use the available indication together with system diagnostics when checking module operation and communication status.

The single-slot construction requires correct mechanical seating and electrical connection within the associated FLEX I/O assembly. Network wiring and power conductors should follow the applicable Modbus installation requirements and the electrical practices defined for the connected I/O system.

Frequently Asked Questions

Q: What external power supply does the 3170-MBS require?
A: The 3170-MBS accepts an external supply voltage from 12 VDC to 24 VDC.

Q: What is the specified backplane current load?
A: The module draws 20 mA at 5 V from the backplane.

Q: What operating temperature range is specified for the module?
A: The specified operating temperature range is 0 deg C to 55 deg C.

Field Installation Guidelines

Install the Allen-Bradley 3170-MBS in the designated single-slot position of the compatible FLEX I/O assembly. Ensure that the module is fully seated and that the mechanical connection is secure before applying power.

Connect the external DC supply within the specified 12 VDC to 24 VDC range. Verify supply polarity and use appropriately rated industrial wiring. Route communication cables separately from high-power conductors where practical to reduce electrical interference.

Terminate and shield Modbus communication wiring according to the requirements of the installed network architecture. Apply shield grounding practices consistently with the overall control panel design to avoid unwanted ground-current paths.

Before commissioning, verify the backplane connection, external supply wiring, communication connections, and LED status indication. Confirm that the installation environment remains within the specified operating temperature range.

Other Attributes

• Series: Allen-Bradley ControlLogix
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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