Siemens Simatic S7 Series System Manual

Open loop motion control
12.10 Advanced topics
S7-200 SMART
558 System Manual, 09/2015, A5E03822230-AC
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 545) 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.

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.