Omron SYSMAC C500, Installation Manual

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Appendix B
Specifications
66
DC Input Unit
3G2A5-ID212
In the case where a large number of bits must be controlled, an ID212 DC
Input Unit can simplify wiring by controlling up to 64 bits through only 16
points. Using digital switches or a specially wired keyboard, different combi-
nations of points can access specific bits and words. Two examples of con-
nections using digital switches or a keyboard are given.
Connection Example 1
(Keyboard)
The table below shows how the ID212 DC Input Unit can be wired using a
specially wired keyboard. For example, if A on the keyboard is pressed, the
combination of DATA0 and STB 9 turn ON bit 00, word n. Similarly, the com-
bination of DATA 7 and STB 7 turn ON bit 15, word n+3. The value of word n
depends on where the Unit is mounted on the Rack. For details, refer to the
C500 Operation Manual.
+
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
24 VDC
A
B
C
D
E
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
COM (24 V)
STB 0
STB 1
STB 2
STB 3
STB 4
STB 5
STB 6
STB 7
COM (0 V)
24 VDC
NC
X
Y
Z
The table below shows the combinations made possible when the keyboard
is wired as shown in the figure above.
Point Number 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
word n E D C B A
word n + 1
word n + 2
word n + 3 Z Y X
Note Because the DC Input Unit is operated on an extremely small cur-
rent, make sure there is adequate distance between the DC Input
Unit wires and high-tension equipment or power lines. If this cannot