Open loop motion control
12.11 Understanding the RP Seek modes of the Axis of Motion
S7-200 SMART
672
System Manual, V2.3, 07/2017, A5E03822230-AF
SM address
Description
SMB623
Axis 0 Instantaneous status: Reflects the status of the configuration and
rotation direction status
•
OR (Target speed out of range):
–
0 = In range
–
1 = Out of range
•
R (Direction of rotation):
–
0 = Positive rotation
–
1 = Negative rotation
•
CFG (Module configured):
–
0 = Not configured
–
1 = Configured
SMB624
Axis 0: CUR_PF is a byte that indicates the profile currently being executed.
SMB625
Axis 0: CUR_STP is a byte that indicates the step currently being executed
in the profile.
SMD626
Axis 0: CUR_POS is a double-word value that indicates the current position
of the Axis of Motion.
SMD630
Axis 0: CUR_SPD is a double-word value that indicates the current speed of
the Axis of Motion.
SMB634
Axis 0: Result of the instruction. Error conditions above 127 are generated
by the instruction subroutines created by the Motion wizard.
•
D (Done bit):
–
0= Operation in progress
–
1= Operation complete (set by the Axis of Motion during initialization)
•
ERROR: (See "Motion instruction error codes" (Page 659) list.)
SMB635 to SMB645
Reserved
SMD646
Axis 0: Pointer to the V memory location of the configuration/profile table. A
pointer value to an area other than V memory is not valid. The Axis of Mo-
tion monitors this location until it receives a non-zero pointer value.