5-5
5 I/O Memory
CP2E CPU Unit Software User’s Manual(W614)
5-1 Overview of I/O Memory Areas
5
5-1-2 I/O Memory Area Address Notation
An I/O memory can be addressed using word addresses or bit addresses. The word addresses and bit
addresses are given in decimal format.
z Word Addresses
Specifies a16-bit word.
z Bit Addresses
A bit addresses specifies one of the 16 bits in a word.
The word number and bit number are separated with a period.
On the CX-Programmer, addresses in the CIO Area (including addresses for Serial PLC Links) are
given with no I/O memory area designator. “CIO” is used as the I/O memory area designator in this
manual for clarity.
5-1-2 I/O Memory Area Address Notation
W 1 0 0
I/O memory area
designator
Examples: D, A, W
The word number within
the area given in decimal
W 100 0 2
Word number Period Bit number
(00 to 15)
.
I/O memory
area designator
Period
0
.
0 3
C1
0246810
357 911
IN
CIO 0
Inputs begin from CIO 0
Outputs begin from CIO 100
Bit number
(00 to 15)
To Next Page
Loading...
Need help?
General
