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How to address Modbus TCP data within EcoStruxure Machine Expert Twin?
Machine and Motion Control Forum
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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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.
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.
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