6.2.9 Serial Interface (RS422 Protocol)
All commands have the following structure: <STX><Command><[Data]><EOT>
All commands are answered by the ILR11xx as follows:
<NAK> = the command was not recognized or the data are outside the limit values, or
<ACK> = the command was recognized and executed, the command requires no return data, or
<Data> = the command was recognized and the requested data has been sent.
Definitions:
STX = start transmission = 02h = CTRL B
EOT = end of text = 04h = CTRL D
NAK = no acknowledge = 15h = CTRL U
ACK = acknowledge = 06h = CTRL F
Command = 3 digit command (ASCII text)
[Data] = whole numbers (ASCII text)
In ASCII text (command + data) spaces and capitals/small letters are ignored.
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