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Chapter 5
Offset Programming
A. Write-data words
B. Format of control
word #1
5 4
Figure 5.1
Format of Block transfer write Data with Offset
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Word #1
>
=
<
OE ZT
2
3
4
5
6
>
=
<
OE ZT
7
8
9
10
11
>
=
<
OE ZT
12
13
14
15
16
>
=
<
OE ZT
17
18
19
20
S
21
22
COM for
Preset 1B
>
=
<
OE ZT
OE = Output Enable Bit
ZT = Zero Transition Bit
COM = Comparison Bit
S = Offset Sign Bit
Block transfer read Data with Offset
The upper byte of word 1 indicates the status of the eight outputs
controlled by the module. The module sets each bit when the
corresponding output is turned on.
The lower byte of word 1 (by bit) is:
>
=
<
>
=
<
OE ZT
>
=
<
>
=
<
OE ZT
>
=
<
>
=
<
OE ZT
>
=
<
>
=
<
OE ZT
COM for
COM for
Preset 1A
Preset 0B
>
=
<
>
=
<
OE ZT
Control Word for
>
=
<
Outputs 0 and 1
Preset 0A
Preset 0B
Preset 1A
Preset 1B
Control Word for
>
=
<
Outputs 2 and 3
Preset 2A
Preset 2B
Preset 3A
Preset 3B
Control Word for
>
=
<
Outputs 4 and 5
Preset 4A
Preset 4B
Preset 5A
Preset 5B
Control Word for
>
=
<
Outputs 6 and 7
Preset 6A
Preset 6B
Preset 7A
Preset 7B
Offset Value
No. of Encoder Positions
COM for
Preset 0A
>
=
<
10698 I
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