I/O Modules Position, Wiring, and Specification
Slot Numbering
The DL205 bases each provide different numbers of slots for use with the I/O modules. You
may notice the bases refer to 3-slot, 4-slot, etc. One of the slots is dedicated to the CPU-slot
controller, so you always have one less I/O slot. For example, there are five I/O slots with a 6-
slot base. The I/O slots are numbered 0–4. The CPU slot always contains a PLC CPU or a
CPU–slot controller and is not numbered.
Module Placement Restrictions
The following table lists the valid
locations for all types of modules in a
DL205 system.
Module/Unit
Local CPU Base Local Expansion Base
Remote I/O Base
CPUs
CPU Slot Only
DC Input Modules
AC Input Modules
DC Output Modules
AC Output Modules
Relay Output Modules
Analog Input and Output Modules
Local Expansion
Base Expansion Module
Base Controller Module
CPU Slot Only
Serial Remote I/O
Remote Master
Remote Slave Unit
CPU Slot Only
Ethernet Remote Master
CPU Interface
Ethernet Base Controller
Slot 0 Only
Slot 0 Only*
WinPLC
Slot 0 Only
DeviceNet
Slot 0 Only
Profibus
Slot 0 Only
SDS
Slot 0 Only
Specialty Modules
Counter Interface
Slot 0 Only
Counter I/O
*
Data Communications
Ethernet Communications
BASIC CoProcessor
Simulator
Filler
* When used with H2-ERM Ethernet Remote I/O system
CPU Slot
I/O Slots
Slot 0 Slot 1 Slot 2 Slot 3 Slot 4
Chapter 3: I/O Wiring and Specifications
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DL205 Installation and I/O Manual, 2nd Edition
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