Rockwell Automation 1790D-XXXX DeviceNet Analog Base Terminal Block CompactBlock LDX I/O - Manual (Page 8)

8
Publication 1790-IN002B-EN-P - April 2003
Mount the Optional Expansion Blocks
Mount the expansion block by connecting it to a
previously-installed CompactBlock LDX I/O base or expansion
block.
Beginning with the base block, you can mount your
expansion blocks either horizontally or vertically:
• horizontally (left to right) - add expansion blocks in an
end-to-end configuration
• vertically (up or down) - add expansion blocks either up or
down in a back-to-back configuration. In this configuration,
you must use the optional 15cm ribbon cable
(1790-15CMCBL) and alternately position the blocks in a
right-side up, upside-down fashion.
You can mount your blocks on a panel or DIN rail as
described in the previous section.
Wire the Terminal Blocks
The following figures show how to wire the terminal blocks.
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
UPSIDE DOWN
EXPANSION UNIT Compact Compact Block LDX
PULL PULL PULL PULL
RIGHT SIDE UP
The longer expansion cable
(1790-15CMCBL) will allow
up to 7cm of space in between
blocks.
Horizontal mounting
Vertical mounting