Rockwell Automation 1790P-T4T0 CompactBlock LDX I/O Thermocouple Modules - Manual (Page 20)

Publication 1790-UM003A-EN-P - May 2002
2-6 Installation and Wiring
Protecting the Circuit Board from Contamination
The printed circuit boards of analog modules must be protected from
dirt, oil, moisture, and other airborne contaminants. To protect these
boards, the system must be installed in an enclosure suitable for the
environment. The interior of the enclosure should be kept clean and
the enclosure door should be kept closed whenever possible.
Installing CompactBlock LDX I/O
Follow these steps to install the block:
1. Set the node address on the base block.
2. Mount the base block.
3. Wire the terminal blocks.
4. Connect the network cable.
These steps are explained in detail in the following procedures for
both the 1790D-4T0/T4T0 DeviceNet and 1790P-T4T0 PROFIBUS DP
modules.
Set the Node Address on the DeviceNet 1790D-4T0/T4T0 Base
Block
Each base block comes with its internal program set for node address
63. To reset the node address, adjust the switches on the front of the
block. The two switches are most significant digit (MSD) and least
significant digit (LSD). The switches can be set between 00 and 63.
The rotary switches are read at block power up only. Switch settings
between 64 and 99 cause the block to use the last valid node address
stored internally.
The node address may also be set through RSNetWorx for DeviceNet
or a similar configuration tool. When software configuration is used
for the node address, the switches must be set between 64 and 99.
Example: Node
Address is set at 26
43230