Toho-electronics TTX-700 Manual de usuario descargar pdf (Pagina 2)

Contents

1. Before using the product......................................................................................................................... 4

1.1 On this operation manual ............................................................................................................. 4

1.2 What can be done with communications...................................................................................... 4

1.3 Positioning communications (priority ranking)............................................................................ 4

1.4 Setting before communications .................................................................................................... 4

2. Settings regarding TOHO communications ............................................................................................ 5

2.1 Overview ...................................................................................................................................... 5

2.2 Setting a data length..................................................................................................................... 6

2.3 Setting a stop bit length................................................................................................................ 6

2.4 Setting a parity ............................................................................................................................. 6

2.5 Setting whether to conduct a BCC check..................................................................................... 6

2.6 Setting a communications speed .................................................................................................. 6

2.7 Setting an address......................................................................................................................... 7

2.8 Setting a response delay ............................................................................................................... 7

2.9 Switching communications mode ................................................................................................ 7

3. TOHO communications control.............................................................................................................. 8

3.1 Communications procedure.......................................................................................................... 8

3.2 Message types .............................................................................................................................. 8

3.3 Composition of a request message

(transmitted from a high-level computer to this product)............................................................. 9

3.4 Composition of a response message

(transmitted from this product to a high-level computer)........................................................... 10

3.5 Description of codes....................................................................................................................11

3.6 Communications precautions ..................................................................................................... 13

4. Examples of TOHO communications ................................................................................................... 15

4.1 Examples of communications to be read.................................................................................... 15

4.2 Examples of communications to be written ............................................................................... 15

5. Settings regarding MODBUS communications .................................................................................... 17

5.1 Overview .................................................................................................................................... 17

5.2 Setting a data length................................................................................................................... 18

5.3 Setting a stop bit length.............................................................................................................. 18

5.4 Setting a parity ........................................................................................................................... 18

5.5 Setting a communications speed ................................................................................................ 18

5.6 Setting an address....................................................................................................................... 19

5.7 Setting a response delay ............................................................................................................. 19

5.8 Switching communications mode .............................................................................................. 19

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Toho-electronics TTX-700 Manual de usuario Pagina 2

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