Siemens SIDOOR AT40 System Manual page 201

Parameter page index
The page index is used to select parameter pages. This enables the PNU value range to the
extended (0 to 1999). The resulting parameter ID then has the value range from 0 to 65,999.
The page index is coded in bits 10 to 15 of the high byte of IND.
Bits 8 and 9 are reserved, and not used.
The page index is defined as multiple of 2000. The binary representation is also scrambled.
The exact assignment of the bits is described below.
Table 6- 64 Parameter page index
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10
a d c
Table 6- 65 Page index assignment
Value range of parameter ID
from to
0000 1999
2000 3999
4000 5999
6000 7999
8000 9999
... ...
32.000 33.999
... ...
64.000 65.999
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
System Manual, 06/2016, A2B00096162-AN
Bit 9
b f e
Bits for page index
a d c
0 0 0
1 0 0
0 0 0
1 0 0
0 0 1
... ... ...
0 0 0
... ... ...
0 0 0
6.11 Structure of user data/process data
IND
Bit 8 Bit 7 Bit 6 Bit 5
b f e
0 0 0
0 0 0
1 0 0
1 0 0
0 0 0
... ... ...
0 0 1
... ... ...
0 1 0
Bit 4 Bit 3 Bit 2
Hex + parameter number (PNU)
value
0x00 0x0000 to 0x07CF
0x80 0x0000 to 0x07CF
0x10 0x0000 to 0x07CF
0x90 0x0000 to 0x07CF
0x20 0x0000 to 0x07CF
...
0x04 0x0000 to 0x07CF
...
0x08 0x0000 to 0x07CF
Controllers
Bit 1 Bit 0
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