Example: UP1 1 1 3 command
Update Process Layer Parameter, Process 1, Layer 1, Material 3 (3)
Command:
09 00 55 50 01 01 01 03 00 00 00 AB
Response: 03 00 00 39 06 3F
Parameter Value: In this case, an integer specifying
the material to make active for the process. Integers
are 4 bytes, low to high.
Checksum: 1 byte, hex sum of complete message
exluding length characters. In this case, 55+50+
01+01+01+03+00+00+00 = AB. Be sure to add in hex.
ASCII UP: This is the Command Group
byte, specifying the category of the
command (Update Process in this case).
Checksum: 1 byte, hex sum of complete message excluding
length characters. In this case, 00+39+06 = 3F, so the
checksum shown is 3F. Be sure to add in hex.
Timer Tick: Increments 10
times/second.
CCB: 00 Indicates no errors in the
command packet.
Length character: Hex number of bytes in
the message excluding length character and
checksum. In this case, the message
consists of 3 bytes (00,39,06). The low end
of the length character is first, followed by
the high end (00 in this case). Remember to
count in hex.
SCII <ACK>, acknowledges a
good command.
Length character: Hex number of bytes in
the message excluding length character and
checksum. In this case, the message
consists of 9 bytes (55,50, . . . 00,00). The
low end of the length character is first,
followed by the high end (00 in this case).
Remember to count in hex. Command ID: 1 binary byte,
identifies specific command within
command category (in this case,
specifies we will update material).
Process Number
Layer Number
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