For method, safety switching apparatus and the control module of the transmission of fail safe ground

For method, safety switching apparatus and the control module of the transmission of fail safe ground

  • CN 101,557,278 B
  • Filed: 04/09/2009
  • Issued: 05/25/2016
  • Est. Priority Date: 04/09/2008
  • Status: Active Grant
First Claim
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1. for the method at process automation fail safe ground field bus communication, itsIn, transmission information (22) between transmitter (1) and receiver (2), whereinBy at least two telegrams (20,21) that relate to described information (22) as the first electricityReport (20) by the first channel and as the second telegram (21) by second channel fromDescribed transmitter (1) transfers to described receiver (2), it is characterized in that, at leastFrom the first subset of described the first telegram (20), generating the first identification code (23) usesIn described the second telegram (21,31), in order to identify during the transmission to described letterThe mistake that breath (22) exerts an influence, described the first identification code is in described receiver (2)Middle application is to measure the described information (22) being included in described the first telegram (20)Integrality, described method is for handling as described transmitter/described receiverControl module (10) on conduct described in the safety open of transmitter/described receiverClose device (11), wherein application is for first data wire (3) of described the first channelWith the second data wire (4) for described second channel for described control module(10) with described safety switching apparatus (11) communicate by letter and conversely for describedSafety switching apparatus (11) is communicated by letter with described control module (10), wherein, and instituteA part of stating identification code is placed in described the first telegram and by described identification codeRemainder is placed in described the second telegram.

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