FIELD: information technology.
SUBSTANCE: first message is sent from a programmable logic controller (PLC) to a module, said first message is transmitted via a first 8B/10B encoded frame that comprises a destination address corresponding to an eight bit default module address of said module, said first message is adapted to set a module address of said module to an assigned address value and transmit a reply message via a second 8B/10B encoded frame that comprises a source address that confirms said assigned address value has been assigned to said module by said first message, said first 8B/10B encoded frame comprising a message type field of a size that corresponds to eight bits.
EFFECT: high reliability of control system owing to prevention of errors arising from failure of equipment or data transmission errors.
14 cl, 12 dwg, 4 tbl
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Authors
Dates
2011-05-27—Published
2007-08-08—Filed