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Rockwell Automation Publication 1790-UM001B-EN-P - April 2021
Appendix A Install, Wire, and Configure PROFIBUS Modules
Group your modules in the enclosure to minimize adverse effects from
radiated electrical noise and heat. Consider the following conditions when
selecting a location for the analog module. Position the module:
•
away from sources of electrical noise such as hard-contact switches,
relays, and AC motor drives
•
away from modules that generate significant radiated heat.
In addition, route shielded, twisted-pair analog input and output wiring away
from any high-voltage I/O 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 Block
Follow these steps to install the block:
1.
Set the Station Address on the Base Block
2.
3.
Connect the PROFIBUS DP Terminal Connector
4.
Set the Station Address on the Base Block
To set the station address, adjust the switches on the front of the base block.
The two switches are most significant digit (MSD) and least significant digit
(LSD). The switches can be set from 00 to 99 and are read at base block power-
up only.
shows an example base block set for station address 11.
Figure 21 - Node Address Settings
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.
NODE ADDRESS
MOD
NET
STATUS
LSD
MSD
Node Address is set to 11
Содержание Allen-Bradley 1790D-N0C2
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