Appendix
8-18
L
_^ONMObk
Extended addressing
Another possibility is the direct addressing of parameters by means of expanded addressing.
!
CH1
CH2
CH3
CH4
SC1
SC2
The abbreviations have the following meanings:
!
The ASCII character
”
!
”
= 21
hex
= 33
dec
shows
that the expanded addressing is used.
CH1 to CH4
Code number in hexadecimal code:
each character corresponds to a nibble of the
code numbers (CH1 is the highest,
CH4 is the lowest nibble).
SC1, SC2
Subcode number in hexadecimal code:
Each character corresponds to a nibble of the
code number word (SC1 is the highest-
and SC2 the lowest nibble).
The following characters can be displayed in the ASCII code:
ASCII
0
1
2
3
4
5
6
7
8
9
O
B
C
D
I
F
dec
48
49
50
51
52
53
54
55
56
57
65
66
67
68
69
70
hex
30
31
32
33
34
35
36
37
38
39
41
42
43
44
45
46
A code number range from 0 to 65535 can be addressed by means of these characters. A maximum
of 255 subelements (field elements) can be accessed via one subcode number of each code.
Example:
1002 =
”
!03EA00
”
Parameter value (V1 to Vn)
Parameter values can be transmitted in four different formats with the following structures:
•
ASCII decimal format (VD)
-
VK1
VK2
VK3
VK4
VK5
VK6
.
NK1
NK2
NK3
NK4
•
ASCII hexadecimal format (VH)
H
VH1
VH2
VH3
VH4
VH5
VH6
VH7
VH8
•
String format (VS)
S
VS1
VS2
VS3
VS4
VS5
VS6
...
VS240
•
Octet string format for data blocks (VO)
O
VO1
VO2
VO3
VO4
VO5
VO6
...
VO240
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