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3-4. Command and Response Transfer Formats
Command Transfer Formats
STX Commands Data String ETX BCC
Response Transfer Formats
STX Commands Status Data String ETX BCC
Data string must be within 1024 bytes.
BCC is an exclusive logic sum from the command to ETX.
3-5. Transfer Control Characters
The following shows the transmission control character codes and functions.
BCC is an exclusive logic sum from the command to ETX.
Character Code Function
STX 02h Text start symbol
ETX 03h Text end symbol
ACK 06h Normal response
NAK 15h Resent request
DLE 10h Reject response
LF 0Ah Line feed of printed line
ESC 1Bh Start escape sequence
BCC - Block check character