Chapter 13. Dedicated Cnet communication for GM6
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2) Sequence of command frame
(1) Sequence of command request frame
ENQ Station No.
Command
Formatted data
EOT BCC
(PLC ACK response)
ACK Station No. Command
Data or null ETX BCC
NAK Station No. Command
Error code
ETX BCC
(PLC NAK response)
(2) Sequence of Download/upload frame
ENQ Station No.
Start Command
Data
EOT BCC
ACK Station No. Command
Data or null ETX BCC
ENQ Station No. Command
Formatted data
EOT BCC
(Down/upload command frame No. H0001)
ACK Station No. Command
Data or null ETX BCC
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ENQ Station No. Command
Formatted data
EOT BCC
(Down/upload end command frame No. HFFFF)
ACK Station No. Command
Data or null ETX BCC