 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
AN2744 датащи(PDF) 46 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
AN2744 датащи(HTML) 46 Page - STMicroelectronics |
|
|
46 / 56 page  Performance and ping tests AN2744 46/56 6 Performance and ping tests Our evaluation environment includes a ping test embedded into the demonstration software and the communication board firmware. This feature allows to perform in-field communication tests and to evaluate reachability of PLC network nodes. A ping session is based on a master board sending to one or more slave boards a sequence of messages. If the messages are correctly received by the slave boards, they are resent one by one to the master. The PC.connected to the master keeps statistics of the messages sent and correctly received by the slave boards, making it possible to get a numerical evaluation of the reachability of each node corresponding to a slave. Figure 46 represents the ping window of the demonstration software tool for the master node. The main characteristics of this tool are indicated in red. Special controls are included in the ping test: – Repetition control: repetition can be used to improve reliability of the communication. When enabled, if a message is not responded by a slave, it will be re-sent up to three times before sending a new message. – Medium access control: defines what type of medium access has to be used. Choices are "none", "BU" or "PD". In the last two cases, messages are sent to slave only if BU or CD/PD lines of the ST7538Q modem are not active. If PD setting is selected, content of the ST7538Q internal control register is changed to select "Preamble" as the detection method. For further details about the ST7538Q demonstration software tool, please refer to UM0241 "ST7538 Power Line Modem DEMO KIT GUI - User Guide". Figure 46. Demonstration software window for the master board Repetition Control Medium Access Control Last Message Status Numerical Statistics Graphical Statistics Number of Slaves (up to 255) Number of Messages Repetition Control Medium Access Control Last Message Status Numerical Statistics Graphical Statistics Number of Slaves (up to 255) Number of Messages |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
