Safety Modbus Protocol
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United States of America Patent
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N/A
Issued Date -
Jul 7, 2005
app pub date -
Jan 7, 2004
filing date -
Jan 7, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A protocol for communication between automation devices and a method for communicating between automation devices is disclosed. The protocol is an enhancement to the Modbus/TCP protocol, and includes a CRC-32 and time stamp fields at the application layer to increase the assurance of the message integrity. This increased integrity in network messages is critical in the operation of safety system.
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