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I/O Code
In this chapter
In this chapter you will find the I/O code of the ASi slaves as defined in the
ASi standard.
I/O code
The I/O code characterizes every ASi slave in respect of its inputs and out-
puts. Table B-1 shows the interrelationship between the assignment of the
four connections of an ASi slave and the I/O code.
Table B-1
ON
ON
ON
ON
ON
ON
ON
ON/OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
TRI
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
I/O code of ASi slaves
D0
D1
D2
ON
ON
ON
ON
ON
ON
ON
OFF
ON
ON/OFF
OFF
OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON/OFF
ON
ON
ON/OFF
ON/OFF
TRI
TRI
B
D3
I/O Code
Decimal
Hex.
ON
0
0
OFF
1
1
ON/OFF
2
2
OFF
3
3
ON/OFF
4
4
OFF
5
5
ON/OFF
6
6
ON/OFF
7
7
OFF
8
8
ON
9
9
ON/OFF
10
A
ON
11
B
ON/OFF
12
C
ON
13
D
ON/OFF
14
E
TRI
15
F
B-1
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