Siemens MICROMASTER 420 Reference Manual page 53

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q
Bits 15 14 13 12
0
3
(2
2
Bit 11-10
Bits 09-08
Bits 07-00
The complete parameter number is generated from the basis parameter number in
the parameter task / reply ID (bits 0 -10) and the bits 12-15 in the index (PNU
page).
Bit 15 has the weighting 2
to 3999. MICROMASTER 420 does not have parameter numbers greater than
3999.
rd
The 3
and 4
parameter being accessed. There are a number of different parameter value types
on MICROMASTER 420; integer values (single or double words), decimal values
(given in IEEE float values, always double words) and indexed parameters
(referred to here as array values). The meaning of the parameter value is
dependent on the parameter value type (middle column) and the setting of P2013
(right hand column).
…q
Bits 15 - 0
MICROMASTER 420 Reference Manual
Issue A1
QG
PNU extension (PNU page).
2
1
2
2
)
Reserved.
Selected the text type + read or write text.
Index (which element):
Which parameter value.
Which description element.
Which index text are meaning.
Which value text are meaning.
0 ... 1999
0 ... 1999
0 ... 1999
0 ... 1999
0 ... 1999
....
0 ... 1999
0
so that this bit must be set for parameter numbers 2000
th
words, PWE1 and PWE2 contain the parameter value for the
UG
= Parameter value for non array parameter.
th
= n
parameter value for array parameter and task for
th
n
element.
st
= 1
parameter value for array parameter and task for
all elements.
= 0.
= High word of parameter value (non array).
th
= High word of n
parameter value for array
th
parameter and task for n
st
= High word of 1
parameter value for array
parameter and task for all elements.
Error value.
2Ãih†v†ÃQIVÃÃQIVÃhtrÃÃ!
0
1
2
3
4
...
15
VW
element.
See below.
Not used.
Not used.
The value 255 = All values of
an index parameter or all
elements of the parameter
description. This is only
possible when P2013 =127.
0 ... 1999
2000 ... 3999
4000 ... 5999
6000 ... 3999
8000 ... 9999
...
30000 ... 31999
When value of P2013
= 3 (fixed) or
= 127 (variable length)
and single word parameter.
When value of P2013
= 127 (variable length)
and single word parameter.
When value of P2013
= 4 (fixed)
and single word parameter.
When value of P2013
= 4 (fixed) or
= 127 (variable length)
and double word parameter.
When value of P2013
= 127 (variable length)
and double word parameter.
Å
Slave
Master and replay ID =
Task cannot be executed.
45

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