Poll for Master

16:32 May 5, 2020
This question was closed without grading. Reason: Other

English to Spanish translations [PRO]
Tech/Engineering - Telecom(munications)
English term or phrase: Poll for Master
Se trata de un texto técnico sobre actuadores para válvulas en sistemas de calefacción y refrigeración que emplean BACnet y Modbus. La frase es el título de un apartado:

Reducing Unnecessary Poll for Master Traffic.

No he encontrado algo en castellano para ese Poll for Master.
Ana Vanessa Conde González
Spain
Local time: 16:30


Summary of answers provided
4 +2[muestreo]/[pregunta]/[revisión]/[búsqueda] de Master
Juan Gil


Discussion entries: 1





  

Answers


7 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
[muestreo]/[pregunta]/[revisión]/[búsqueda] de Master


Explanation:
If address gaps exist between one station and the next higher station, the lower station is required to periodically check if a new station within the gap wants to join the network. This process is called Poll for Master (PFM)).
https://www.ccontrols.com/enews/2013/1013story2.htm

BACnet MSTP is a token passing protocol. Only nodes with the token are allowed to initiate service requests such as requests for data. A device that receives a request, a request that requires a response, may respond without having the token.
Based on this behavior it is easy to understand the difference between a MSTP master and slave. A slave is a device that can only send responses. A master is an initiator of a service request.
… When a device receives a poll asking if it is a master (Called a ‘Poll for Master’ message) it replies immediately.
https://store.chipkin.com/articles/how-does-bacnet-mstp-disc... (este está mas claro).

Por lo que entiendo, cuando no hay un orden lógico (un vecino lógico) en la transmisión de la información (en el tráfico) dentro de las direcciones de la red, esa estación que "siente" que no tiene alguien "lógico" a quien transmitir debe iniciar un "tanteo" para ver si hay/aparece una nueva dirección que deba/quiera incorporarse. Ese es el Poll for Master (Traffic), una forma de detectar nuevos dispositivos pero que en caso de no existir se verá muy seguramente reflejado en tiempos de retardo y en pérdida de ancho de banda.

Ofrezco una traducción libre pero sugiero ponerla entre paréntesis y dejar el original en inglés.

Juan Gil
Venezuela
Local time: 11:30
Specializes in field
Native speaker of: Native in SpanishSpanish
PRO pts in category: 92

Peer comments on this answer (and responses from the answerer)
agree  Andrés Chien-Hwa Chen: Me hace acordar de NetBIOS.
5 hrs
  -> Gracias, Andrés.

agree  EirTranslations
7 hrs
  -> Muchísimas gracias, bella dama.
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