AutomationDirect DL205 User Manual

DL205 User Manual, 4th Edition, Rev. D
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Chapter 4: System Design and Configuration
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Local Expansion I/O
Use local expansion when you need more I/O points, a greater power budget than the local
CPU base provides or when placing an I/O base at a location away from the CPU base, but
within the expansion cable limits. Each local expansion base requires the D2–CM controller
module in the CPU slot. The local CPU base requires the D2–EM expansion module, as well
as each expansion base. All bases in the system must be the new (–1) bases. These bases have
a connector on the right side of the base to which the D2–EM expansion module attaches. All
local and local expansion I/O points are updated on every CPU scan.
Use the DirectSOFT PLC Configure I/O menu option to view the local expansion system
automatic I/O addressing configuration. This menu also allows manual addresses to be
assigned if necessary.
D2–CM Local Expansion Module
The D2–CM module is placed in
the CPU slot of each expansion base.
The rotary switch is used to select the
expansion base number. The expansion
base I/O addressing (Xs and Ys) is based
on the numerical order of the rotary
switch selection and is recognized by the
CPU on power–up. Duplicate expansion
base numbers will not be recognized by
the CPU.
The status indicator LEDs on the D2–
CM front panels have specific functions
which can help in programming and
troubleshooting.
D2–CM Indicators Status Meaning
PWR (Green)
ON Power good
OFF Power failure
RUN (Green)
ON D2–CM has established communication with PLC
OFF D2–CM has not established communication with PLC
DIAG (Red)
ON Hardware watch–dog failure
ON/OFF I/O module failure (ON 500ms / OFF 500ms)
OFF No D2–CM error
DL230 DL240 DL250 DL250-1 DL260
Total number of local / expansion bases per system
These CPUs do not support local
expansion systems
3 5
Maximum number of expansion bases 2 4
Total I/O (includes CPU base and expansion bases) 768 1280
Maximum inputs 512 1024
Maximum outputs 512 1024
Maximum expansion system cable length 30m (98ft.)
Expansion
Controller

AutomationDirect DL205 Specifications

General

Brand	AutomationDirect
Model	DL205
Category	Controller
Language	English