Omron SYSMAC C Series Operation Manual page 40

Functions and User Programs
3-2 IR/CIO Bit Allocations
Bit
IR/CIO n: Point 1
0 A/D converted data 2
1 A/D converted data 2
2 A/D converted data 2
3 A/D converted data 2
4 A/D converted data 2
5 A/D converted data 2
6 A/D converted data 2
7 A/D converted data 2
8 A/D converted data 2
9 A/D converted data 2
10 0
11 0
12 0
13 0
14 0
15 0
3-3 Functions and User Programs
3-3-1 Input Signals and Converted Data
Unipolar Input
Decimal equivalent of
binary code
03FF
(1023)
0
0 V 1 V
(4 mA)
Input: 1 to 5 V, 4 to 20 mA
The IR/CIO bit allocations are shown below. Each Unit is allocated four words.
Input words
IR/CIO n+1: Point 2
0
A/D converted data 2
1
A/D converted data 2
2
A/D converted data 2
3
A/D converted data 2
4
A/D converted data 2
5
A/D converted data 2
6
A/D converted data 2
7
A/D converted data 2
8
A/D converted data 2
9
A/D converted data 2
0
0
0
0
0
0
The Analog Input Unit converts analog input signals into digital data. The analog
input signals must be unipolar inputs. Three models are available to support dif-
ferent analog input ranges.
Input Ranges: 1 to 5 V
4 to 20 mA
0 to 10 V
Converted Output: A/D converted data, 10-bit binary data
Relationship Between Input Signals and A/D Conversion Data
Analog
input
5 V
(20 mA)
IR/CIO n+2: Point 3
0
A/D converted data 2
1
A/D converted data 2
2
A/D converted data 2
3
A/D converted data 2
4
A/D converted data 2
5
A/D converted data 2
6
A/D converted data 2
7
A/D converted data 2
8
A/D converted data 2
9
A/D converted data 2
0
0
0
0
0
0
3G2A5-AD006
3G2A5-AD006
3G2A5-AD007
Decimal equivalent of
binary code
03FF
(1023)
0
0 V
10 V
(5 V)
Input: 0 to 10 V
Section 3-3
IR/CIO n+3: Point 4
0
A/D converted data 2
1
A/D converted data 2
2
A/D converted data 2
3
A/D converted data 2
4
A/D converted data 2
5
A/D converted data 2
6
A/D converted data 2
7
A/D converted data 2
8
A/D converted data 2
9
A/D converted data 2
0
0
0
0
0
0
Analog
input
0
1
2
3
4
5
6
7
8
9
23