Instead of data, some commands request action to occur on an axis or group of axes. For example,
STXY stops motion on both the X and Y axes. Commas are not required in this case since the
particular axis is specified by the appropriate letter X Y Z or W. If no parameters follow the
instruction, action will take place on all axes.When requesting action for coordinated motion, the letter S or T is used to specify the coordinated
motion. S and T refer to the two coordinate systems that can be used on the card. To specify the
desired coordinate system, refer to the command CA in the Command Reference
Command Syntax - Binary
Some commands have an equivalent binary value. Binary communication mode can be executed much faster than ASCII commands. Binary format can only be used when commands are sent from the PC and cannot be embedded in an application program. Binary Command Format All binary commands have a 4 byte header and are followed by data fields. The 4 bytes are specified in hexadecimal format. Header Format: Byte 1 specifies the command number between 80 and FF. The complete binary command number table is listed below.
Controller Response to DATA
The DMC-18x2 returns a : for valid commands. The DMC-18x2 returns a ? for invalid commands.There are many reasons for receiving an invalid command response. The most common reasons are: unrecognized command (such as typographical entry or lower case), command given at improper time (such as during motion), or a command out of range (such as exceeding maximum speed). A complete listing of all codes can be found in the Command Reference under TC.
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