Siemens MICROMASTER 440 Operating Instructions Manual page 157

Issue 10/06
read at once from an "indexed" parameter (refer to "Index", special setting, index =
255). This setting to variable word-length is made during start-up. (refer to
parameter P2013).
15 14
AK
15 14
PNU2
15 14
The following applies:
AK
SPM
PNU
RES
TXT
CAUTION
Do not use a variable word length if SIMATIC S5 or SIMATIC S7 is the master.
This setting must be made both at the master as well as at the slave – and
cannot be changed while the bus is operational.
NOTE
The PKW area is transferred in increasing order, always starting with the 1st
word.
Reserved fields or functions that are not supported should be specifically pre-
assigned zero in the master implementation.
The bit 11 (SPM) is the toggle bit for parameter change reports. Parameter
change reports when reading/writing parameter texts are not supported by
MICROMASTER.
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0
Parameter ID (PKE)
13 12 11 10 9
SP
M
Parameter index (IND)
13 12 11 10 9
RES TXT
Parameter value (PWE)
13 12 11 10 9
Parameter value, high
Parameter value, low
Task or reply ID
Toggle bit for processing of parameter-change reports
(MICROMASTER does not support this, SPM = 0)
Parameter number
Reserved
Read / write from parameter text
(MICROMASTER does not support this, TXT = 0)
8 7 6 5 4
PNU1
8 7 6 5 4
Index
8 7 6 5 4
(PWE1)
(PWE2)
3 Functions
1st word
Bit No.:
3 2 1 0
2nd word
Bit No.:
3 2 1 0
Bit No.:
3 2 1 0
3rd word
4th word
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