Toho-electronics TTM000 Manuel d'utilisateur télécharger pdf (Page 3)

6. MODBUS communications control ................................................................................... 20

6.1 Communications procedure

6.2 Message types

6.3 Composition of an RTU request message (transmitted from a high-level

computer to this product)

6.4 Composition of an RTU response message (transmitted from this product

to a high-level computer)

6.5 Description of RTU codes

6.6 Precautions on RTU communications

6.7 Example of CRC-16 calculations

6.8 Composition of an ASCII request message (transmitted from a high-level

computer to this product)

6.9 Composition of ASCII response messages (transmitted from this product

to a high-level computer)

6.10 Description of ASCII codes

6.11 Precautions on ASCII communications

6.12 Example of LRC calculations

7. Specifications ..................................................................................................................... 35

7.1 Communications standard category

7.2 Communications specifications

8. Connections........................................................................................................................ 36

9. Table of identifiers (codes) ................................................................................................ 38

10. Table of ASCII codes ......................................................................................................... 41

1 2 3 4 5 6 7 8 ... 41 42

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Toho-electronics TTM000 Manuel d'utilisateur Page 3