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> Programmable Controllers > DirectLogic PLCs (Micro to Small, Brick & Modular) > Expansion I/O

DirectLOGIC Expansion I/O Modules

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For DirectLOGIC applications where the I/O provided by the CPU or CPU base is not sufficient, expansion I/O modules can be used to extend the I/O capacity of the controller system. Select products are available to support existing systems and are not recommended for new installations.

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DirectLOGIC (Micro to Small, Brick & Modular PLCs) - Expansion I/O

For applications that require more local I/O than what can be supplied by the main CPU base, expansion I/O controller modules allow for additional base groups of I/O to be installed in close proximity to the main base.

DirectLOGIC PLCs are not intended for new system development, please consider our latest lines of controllers (Do-more, Productivity, or CLICK) for new installations.

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DL205 Series PLC Expansion I/O Modules

DL205 local expansion is accomplished using the D2-CM and D2-EM modules together, along with the appropriate extension cable.

The D2-CM module is placed in the CPU slot of each expansion base (up to 4 total) and the rotary switch is used to set a unique expansion base number that is recognized by the DL205 CPU
The D2-EM expansion unit is attached to the right side of each base in the expansion system, providing the connections needed between base units
The D2-CM and D2-EM used together can increase the local I/O count of a DL205 system to a maximum of 1280 I/O points
The maximum total expansion system cable length is 30m (98ft)

DL405 Series PLC Expansion I/O Modules

To expand the local I/O count past the limits of the primary base unit, the DL405 system requires one or more D4-EX modules, base units, and associated extension cables.

The D4-EX expansion unit is installed in the CPU slot of the expansion base and provides power to the expansion I/O only; connections are made using the built-in ports on the DL405 base unit(s)
The D4-EX modules can increase the I/O count of the local DL405 PLC to 2048 points
D4-EX modules can also be used to expand the I/O capacity of H4-EBC remote I/O modules up to 1280 total points

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