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15 Analog I/O Function
15-3 I/O Allocation and Related Auxiliary
Area Flags
15-3-1 I/O Allocation
Word
CIO 90
AD0
CIO 91
AD1
CIO 190
DA0
15-3-2 Related Auxiliary Area Flags
Bit
A434.00
Open-circuit
Detection Flags
A434.01
Open-circuit
Detection Flags
A434.04
Analog Initial-
ization Com-
pleted Flag
A315.14
Built-in Analog
Error
15-12
I/O Points
CIO words that I/O conversion data for AD0 is
stored in.
CIO words that I/O conversion data for AD1 is
stored in.
CIO words that I/O conversion data for DA0 is
stored in.
Name
When analog Input 0 (AD0) open-circuit Error
is detected, this bit will be changed to "1".
When analog Input 1 (AD1) open-circuit Error
is detected, this bit will be changed to "1".
The Analog Initialization Completed Flag will
be changed to "1" ON when initial processing
is completed.
If the system starts operating, use this flag in
the program to delay reading converted data
from analog inputs until the data is valid.
When the built-in analog do not work normally,
this bit will be changed to "1".
Description
Description
CP1E CPU Unit Software User's Manual(W480)
Values
-10V to 10V range: F448 to
0BB8 hex
Other ranges: 0000 to 1770 hex
Values
0: No error
1: Open-circuit error detected
0: Initializing
1: Initialization completed
0: No error
1: Built-in analog error
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