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Multiple slave logging device

  • US 7,617,775 B2
  • Filed: 01/24/2006
  • Issued: 11/17/2009
  • Est. Priority Date: 07/15/2003
  • Status: Active Grant
First Claim
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1. A logging device for use with a plurality of slave devices each having an identity and a pyrotechnic charge, comprising a power supply, an electrical interface, and memory, said logging device being configured for two-way communication with said plurality of slave devices simultaneously connected to said electrical interface by individually addressing said slave devices, wherein said logging device is configured to operate only at a voltage that is incapable of causing detonation of said pyrotechnic charge.

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