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Support forum for Machine and Motion Control solutions, including Lexium MC12 and robotics, PacDrive, Modicon PLCs and I/Os, EcoStruxure Machine Expert Twin, … - from design, implementation to troubleshooting and more, by Schneider Electric
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Posted: 2024-03-25 03:21 AM . Last Modified: 2024-11-21 12:54 AM
The addressing of Modbus TCP data in Machine Expert Twin is word-wise. Therefore, the data in the holding register must be addressed according to their word address.
Hint: Make sure that the data format (Big / Little endian) matches when transmitting it
Example scenario:
Your application contains a variable (LREAL) with the speed reference for a servo belt in Machine Expert Twin and this is stored in the holding register %ML10.
Example Code in Machine Expert
In order for Machine Expert Twin to access the value correctly, the correct word address must first be determined in the holding register.
%ML10 | %MD20 | %MW40 |
%MW41 | ||
%MD21 | %MW42 | |
%MW43 |
For the example application it would mean that you have to use the word address %MW40 and enter it as the address in Machine Expert Twin.
Machine Expert Twin Adressing
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