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Fieldbus

Fieldbus. J.-D. Chatelain. RWM 1. RWM 2. RWM 3. RWM 4. RWM 2. RWM 2. RWM 3. RWM 4. RWM 1. RWM 1. Interface 1. Interface 2. Interface 3. 1. 1. 2. 2. 3. 3. 1. 1. 2. 2. 3. 3. Power supply. Fieldbus. Master. RWM 1. RWM 2. RWM 3. RWM 4. RWM 2. RWM 2. RWM 3. RWM 4.

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Fieldbus

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  1. Fieldbus J.-D. Chatelain

  2. RWM 1 RWM 2 RWM 3 RWM 4 RWM 2 RWM 2 RWM 3 RWM 4 RWM 1 RWM 1 Interface 1 Interface 2 Interface 3 1 1 2 2 3 3 1 1 2 2 3 3 Power supply Fieldbus Master

  3. RWM 1 RWM 2 RWM 3 RWM 4 RWM 2 RWM 2 RWM 3 RWM 4 RWM 1 RWM 1 Interface 1 Interface 2 Interface 3 1 1 2 2 3 3 1 1 2 2 3 3 Power supply Fieldbus Master

  4. RWM 1 RWM 2 RWM 3 RWM 4 RWM 2 RWM 2 RWM 3 RWM 4 RWM 1 RWM 1 Interface 1 Interface 2 Interface 3 1 1 2 2 3 3 1 1 2 2 3 3 Power supply Fieldbus Master

  5. RWM 1 RWM 2 RWM 3 RWM 4 RWM 2 RWM 2 RWM 3 RWM 4 RWM 1 RWM 1 Interface 1 Interface 2 Interface 3 1 1 2 2 3 3 1 1 2 2 3 3 Power supply Fieldbus Master

  6. Example:Read 4 words from address 10 J.-D. Chatelain

  7. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "D" 1 1 0 0 0 1 1 1 0 0 X X X Lire 4 mots à partir de l'adresse 10 New command RWM2 0 0 1 0 Read Tag EM4056 0 From address 10 10 4 words 4 X irrelevant X Tags in front of RWM1 and RWM2 Acknowledgment No data 0 RWM2 2 Slave No interface error 0 No RWM error 0 irrelevant Power supply PHASE 1 Fieldbus Master

  8. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "D" 1 1 0 0 0 1 1 1 0 0 X X X Lire 4 mots à partir de l'adresse 10 Command completed 0 0 1 0 0 irrelevant 10 4 X X Understood, end of communication 0 2 Slave 0 irrelevant 0 Power supply PHASE 1 Fieldbus Master

  9. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "R" "D" "P" 0 0 0 1 1 1 1 0 0 0 1 X DATA 1 X X Lire 4 mots à partir de l'adresse 10 New command RWM2 0 0 1 0 Reply 0 10 irrelevant 4 X X Tags in front of RWM1 and RWM2 Releasing of data Data + protections Number of words 0 6 RWM2 2 Slave No interface error 0 No RWM error 0 Data DATA 2 (début) Power supply PHASE 2 Fieldbus Master

  10. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "P" 1 0 1 DATA 1 DATA 3 DATA 4 Lire 4 mots à partir de l'adresse 10 Waiting next data 1 0 0 1 0 irrelevant 10 4 X X Releasing of data 0 1 0 0 1 1 1 DATA 2 (continuation) 6 2 Slave 0 Data 0 Protection 1 DATA 2 (beginning) Protection 2 Power supply PHASE 2 Fieldbus Master

  11. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "P" 1 0 DATA 3 DATA 4 Lire 4 mots à partir de l'adresse 10 Data are read 1 0 0 1 0 irrelevant 10 4 X X Waiting an instruction 1 0 0 0 1 1 1 DATA 2 (continuation) Slave irrelevant Protection 1 Protection 2 Power supply PHASE 2 Fieldbus Master

  12. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "P" 1 0 DATA 4 DATA 3 Protection 3 Protection 1 Lire 4 mots à partir de l'adresse 10 0 1 0 1 Waiting next data 0 irrelevant 10 4 X X Releasing of data 1 0 0 0 1 1 1 DATA 2 (suite) Data Protection 4 Slave irrelevant Protection 4 Power supply PHASE 2 Fieldbus Master

  13. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "P" DATA 4 Protection 1 Protection 3 Lire 4 mots à partir de l'adresse 10 Data are read 1 0 0 1 0 irrelevant 10 4 X X All data have been sent Waiting an instruction 0 1 0 0 1 1 1 1 0 1 Protection 4 Slave irrelevant Protection 4 Power supply PHASE 2 Fieldbus Master

  14. RWM 1 RWM 2 RWM 3 RWM 4 0 1 0 "R" "P" DATA 4 Protection 3 Protection 1 Lire 4 mots à partir de l'adresse 10 Command completed 0 0 0 1 0 irrelevant 10 4 X X End of transaction 0 0 0 1 1 1 0 1 0 1 Protection 4 Slave irrelevant Protection 4 Power supply PHASE 2 Fieldbus Master

  15. End of this chapter Fieldbus J.-D. Chatelain

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