Moeller S40-AM-TL, Руководство пользователя

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10/00 AWB27-1301-GB
2 Data Arrays
Data is exchanged between the primary station and the
secondary stations using byte data arrays. This means that
data that has a different data format in the application must
be converted before it is entered in the data array.
Conversely, array elements must be converted to the data
format of the application before they can be read.
Organisation Within the function block, data arrays are defined in the
variable declaration.
A data array must be defined for the receive and send data
in each station. The individual elements of the array, such as
station number, subaddress, offset and dimensions are
shown in the following table:
Table 2: Definition of the data arrays
Basic function block Universal function block
Primary station
2 two-dimensional data arrays
(station, data length) 2 three-dimensional data arrays (station,
subaddress, offset address)
Secondary station
2 one-dimensional data arrays (data
length) 2 two-dimensional data arrays
(subaddress, offset address)