CY550 Command Summary

Commands are upper case ASCII letters, followed by a space and argument value, as needed. Arguments without a suffix are single-byte values. Arguments with a 16 suffix are two-byte numbers and arguments with a 24 suffix are three-byte numbers up to 16777215. Multiple arguments may be separated by a space or comma.

Command                 Function
A  Pos24           At position, sets current step position
B  Bit             Bit set to clear of user selectable bits
C                  Set Continuous step mode
D  Del16           Delay for specified milliseconds
E                  Enter following commands to external mem
F  Rate            Specify First step rate
G                  Go step, relative mode
H  Bit             Seek Home, using specified bit
I                  Initialize CY550, perform software reset
J  Addr            Jump to byte address of current mem page
K  Addr16          Set input addr pointer for extended I/O reads
L  Cnt,Addr        Loop to byte address for specified count
M  Addr16          Set output addr pointer for extend. I/O writes
N  Num24           Set number of steps for relative motions
O  Mode16          Set Operating mode of CY550
P  Pos24           Step to specified absolute Position
Q                  Quit entering commands to external memory
R  Rate16          Specify slewing step Rate
S  Slope           Specify acceleration Slope value
T  Bit,Addr        Loop to address Til bit matches value
U                  Reserved command
V                  Wait for current motion to finish
W  Bit             Wait for specified bit to match value
X                  eXecute external memory address pointer
Y  Addr16          Set external memory address pointer
Z  Cnt16,Addr      ZillionLoop to byte address for 16 bit count
+                  Select CW direction for relative motions
-                  Select CCW direction for relative motions
/                  Negate prefix used with bit commands
?  Cmd             Query specified command parameter value
0                  Stop execution commands from memory
/  Num 24          Wait for the specified number of steps
]  Pos 24          Wait for the specified absolute position
^                  Stop the current motion
#  Val             Set the value of the I/O byte register
!                  Perform extended I/O read
%                  Perform extended I/O write
[Addr,Cnt,D1,...,Dn     Special HP Display support command
"String"           Display all characters between quotes