Prevent electrostatic discharge, Set the node address – Rockwell Automation 1799-D16U16BAGL 16 Input/16 Output Digital and 2 Input/2Output Analog  User Manual

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16 Input/16 Output Digital and 2 Input/2 Output Analog Embedded I/O Boards 5

Publication 1799-IN011A-EN-P - February 2007

Set the Node Address

Valid node addresses are 00…63.

Set the node address using the rotary switches or a DeviceNet configuration tool such as
RSNetWorx for DeviceNet software. Setting the switches between 64 and 99 lets the software
have address control.

Each board is shipped with the node address set to 63 in the board’s memory. The rotary
switches are set for position 99 at shipment. The switches are located near the center of the
board. The two switches are:

• MSD (most significant digit).
• LSD (least significant digit).

To reset the node address, use a small blade screwdriver to rotate the switches. Line up the
small arrow on the switch with the number setting you wish to use.

The rotary switches are only read when you apply power to the board. Settings between 64
and 99 cause the board to use the last valid node address stored in the board’s memory.

For example, the last setting in memory is 40. If a change is made to 68, and then you apply
power to the board, the address will default to 40.

ATTENTION

Prevent Electrostatic Discharge

This equipment is sensitive to electrostatic discharge, which can cause internal damage
and affect normal operation. Follow these guidelines when you handle this equipment:

• Touch a grounded object to discharge potential static.

• Wear an approved grounding wriststrap.

• Do not touch connectors or pins on component boards.

• Do not touch circuit components inside the equipment.

• Use a static-safe workstation, if available.

• Store the equipment in appropriate static-safe packaging when not in use.

LSD (S2)

MSD (S1)

The LSD (S2)
and MSD (S1)
switches are
shown in the
63 position.

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