8 memory requirements for process data, 9 example constellation, Memory requirements for process data – Lenze 3241C User Manual
Page 22: Example constellation, 3 api functions
3 API
functions
20
3.4.8
Memory requirements for process data
The memory requirements for process data can be calculated via the currently
available modules:
Terminal
Process image
Configurable
Bytes @64 nodes
DI,DO 2x
2 bits
Always 1byte per terminal is
transmitted
64
DI,DO 4x
4 bits
(1byte)
64
DI,DO 8x
8 bits
(1byte)
64
AI,AO 2x12bits 4 bytes (2x16bits)
256
AI,AO 4x12bits 8 bytes (4x16bits)
512
Reading and writing are different with the regard to the maximum amount of data.
During reading, according to the table there is a maximum of 1280 bytes; during
writing a maximum of 512 bytes.
3.4.9
Example constellation
The example constellation of a randomly selected combination of I/O compound
modules is used as an illustration. After the address location has been carried out, the
following results:
Abb. 4
Example constellation