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pasquale_system_june_2011

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pasquale_system_june_2011 [2011/06/17 09:09] – created tomgeepasquale_system_june_2011 [2011/06/17 09:16] (current) – tomgee
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 ===== Pasquale - Downing Place Sensor Network ===== ===== Pasquale - Downing Place Sensor Network =====
 Pasquale is a temperature, humidity and voltage sensor board with an RS485 network interface. The CPU sensor board is a slave on a Master/Slave RS485 network. The slave devices perform environmental monitoring. The monitored data is reported upon request by the Network Master. \\ Pasquale is a temperature, humidity and voltage sensor board with an RS485 network interface. The CPU sensor board is a slave on a Master/Slave RS485 network. The slave devices perform environmental monitoring. The monitored data is reported upon request by the Network Master. \\
 +
 Each client has a unique 8 bit address. The addresses are assigned by command from the Master. When a device is first installed on a Network, the address is set to 0xFE. The Master then addresses device oxFE with a write address command that includes the assigned address for this device. \\ Each client has a unique 8 bit address. The addresses are assigned by command from the Master. When a device is first installed on a Network, the address is set to 0xFE. The Master then addresses device oxFE with a write address command that includes the assigned address for this device. \\
  
  
 +Protocol:
 +
 +|Framing 0x7F|Destination Addr|Source Addr|Command|Data Length| Data bytes| CRC Hi |CRC Lo|
 +
 +Commands:
 +
 +|A| Address command |Data = address byte|
 +|D| Data Request| Data n/a|
 +|S| Status Response| Data = stored data|
pasquale_system_june_2011.1308316147.txt.gz · Last modified: 2011/06/17 09:09 by tomgee