DL06 Micro PLC User Manual; 3rd Edition Rev. E
4–4
Chapter 4: System Design and Configuration
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Automatic I/O Configuration
The DL06 CPUs automatically detect any installed I/O modules (including specialty modules)
at powerup, and establish the correct I/O configuration and addresses. This applies to modules
located in the local base. For most applications, you will never have to change the configuration.
I/O addresses use octal numbering, starting at X100 and Y100 in the slot next to the CPU.
The addresses are assigned in groups of 8, or 16 depending on the number of points for the
I/O module. The discrete input and output modules can be mixed in any order. The following
diagram shows the I/O numbering convention for an example system. Both the Handheld
Programmer and
Direct
SOFT 5 provide AUX functions that allow you to automatically
configure the I/O. For example, with the Handheld Programmer AUX 46 executes an automatic
configuration, which allows the CPU to examine the installed modules and determine the
I/O configuration and addressing.With
Direct
SOFT 5, the PLC Configure I/O menu option
would be used.
Automatic
Manual
Manual I/O Configuration
It may never become necessary, but DL06 CPUs allow manual I/O address assignments for any
I/O slot(s) . You can manually modify an auto configuration to match arbitrary I/O numbering.
For example, two adjacent input modules can have starting addresses at X100 and X200.Use
Direct
SOFT 5 PLC Configure I/O menu option to assign manual I/O address. In automatic
configuration, the addresses are assigned on 8-point boundaries. Manual configuration,
however, assumes that all modules are at least 16 points, so you can only assign addresses that
are a multiple of 20 (octal). You can still use 8 point modules, but 16 addresses will be assigned
and the upper eight addresses will be unused.
WARNING: If you manually configure an I/O slot, the I/O addressing for the other modules may
change. This is because the DL06 CPUs do not allow you to assign duplicate I/O addresses. You must
always correct any I/O configuration errors before you place the CPU in RUN mode. Uncorrected
errors can cause unpredictable machine operation that can result in a risk of personal injury or damage
to equipment.
Slot 1
8pt. Input
X100–X107
Slot 2
16pt. Output
Y100–Y117
Slot 3
16pt. Input
X110–X127
Slot 4
8pt. Input
X130–X137
Slot 1
8pt. Input
X100–X107
Slot 2
16pt. Output
Y100–Y117
Slot 3
16pt. Input
X200–X217
Slot 4
8pt. Input
X120–X127
