Siemens 2D-TZ577, Инструкция по эксплуатации

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7 Procedure before Startup
Parameter Settings on the Side of Master Station 7 - 33
Item Setting range Description Remark
Swap settings
(Word Data Swap)
0 to 1
Indication as to whether there is swapping
of word data sent/received at 2D -TZ577
Card (defined in "User_Prm_Data" on the
Master Station)
0: No swapping takes place.
1: Swapping takes place.
-
(1) Number of data module settings
Make settings so that the number of data modules per 2D -TZ577 Card falls within the limits shown below:
• Number of data modules: 40 maximum
• Combined data size
Input data - 122 words maximum
Output data - 122 words maximum
(2) Data module setting pattern
An appropriate pattern is selected from among 48 patterns which derive from a combination of 3 input/output
options and 16 data sizes. Note that input/output notations are based on the Master Station being the origin. For
more information, see Subsection (3)
Data alignment mode settings
.
Table 7-3 Data Module Settings
Item Type
Input/output
designation
Input/output/IO
Data size 1 to 16 words
(3) Data alignment mode settings
Method by which to align each module in the output receive area/input send area of buffer memory is specified.
The 2D -TZ577 Card comes with a lump alignment mode (lump mode) alone, permitting no changes to these
settings.
(a) Lump alignment mode (lump mode)
Input data/output data is aligned on the front in the input send area/output receive area, respectively, in
the order of data module. The table below shows examples of usage statuses in the output receive
area/input send area which occur on the data module settings shown.
Table 7-4 Examples of Data Module Settings
Data module settings Output data Input data
Data module 0 One- word input (1 word In) One-word
Data module 1 2 - word output (2 word Out) 2 -word
Data module 2 One-word input/output (1 word In, 1 word Out) One-word One-word
Data module 3 One-word output (1 word Out) One-word
Data module 4 2 - word input (2 word In) 2 -word
Data module 5 One-word output (1 word Out) One-word
192 words in combined total