14
Rockwell Automation Publication 1790-UM001B-EN-P - April 2021
Chapter 2 Installation and Wiring
Protect the Circuit Board from Contamination
The printed circuit boards of the 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.
Install the CompactBlock
LDX I/O
Follow these steps to install the block:
1.
Set the Node Address on the Base Block
2.
3.
Mount the Optional Expansion Blocks
4.
Set the Node Address on the 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 from 00 to 63.
The rotary switches are read at block power-up only. Switch settings from 64 to 99
cause the block to use the last valid node address stored internally
.
Figure 4 - Node Address Settings
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 from 64 to 99.
Mount the Base Block
You can mount the base block to a panel or DIN rail. We recommend that you
ground the panel or DIN rail before mounting the block.
IMPORTANT
The analog base module can accommodate a
maximum
of two
discrete expansion modules.
WARNING:
When used in a Class I, Division 2, hazardous location, this
equipment must be mounted in a suitable enclosure with proper wiring
method that complies with the governing electrical codes.
NODE ADDRESS
MOD
NET
STATUS
LSD
MSD
Node Address is set to 11
Содержание Allen-Bradley 1790D-N0C2
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