Siemens Simatic S7 Series System Manual

Open loop motion control
12.2 Using motion control
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
487
Specify the following times in milliseconds:
● ACCEL_TIME: Time required for the motor to accelerate from SS_SPEED to
MAX_SPEED. Default = 1000 ms
● DECEL_TIME: Time required for the motor to decelerate from MAX_SPEED to
SS_SPEED. Default = 1000 ms
12.2.3
Configuring the motion profiles
A profile is a pre-defined motion description consisting of one or more speeds of movement
that effect a change in position from a starting point to an ending point. You do not have to
define a profile in order to use the Axis of Motion. The Motion wizard provides instructions for
you to use to control moves without running a profile.
A profile is programmed in steps consisting of an acceleration/deceleration to a target speed
followed by a fixed number of pulses at the target speed. In the case of single step moves or
the last step in a move, there is also a deceleration from the target speed (last target speed)
to stop.
The Axis of Motion supports a maximum of 32 profiles.
Defining the motion profile
The Motion wizard guides you through a motion profile definition, where you define each
motion profile for your application. For each profile, you select the operating mode and
define the specifics of each individual step for the profile. The Motion wizard also allows you
to define a symbolic name for each profile by simply entering the symbol name as you define
the profile.

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.