Siemens Simatic S7 Series System Manual

Open loop motion control
12.6 Subroutines created by the Motion wizard for the Axis of Motion
S7-200 SMART
516 System Manual, 09/2015, A5E03822230-AC
12.6.9
AXISx_SRATE subroutine
Table 12- 20 AXISx_SRATE
LAD / FBD
STL
Description
CALL AXISx_SRATE,
START, ACCEL_Time,
DECEL_Time,
JERK_Time, Done, Er-
ror
The AXISx_SRATE subroutine (Set Rate) commands the Axis of Mo-
tion to change the acceleration, deceleration, and jerk times.
Table 12- 21 Parameters for the AXISx_SRATE subroutine
Inputs/Outputs
Data type
Operands
START
BOOL
I, Q, V, M, SM, S, T, C, L
ACCEL_Time,
DECEL_Time, JERK_Time
DINT ID, QD, VD, MD, SMD, SD, LD, AC, *VD, *AC, *LD,
Constant
Done BOOL I, Q, V, M, SM, S, T, C, L
Error
BYTE
IB, QB, VB, MB, SMB, SB, LB, AC, *VD, *AC, *LD
Turn on the EN bit to enable the subroutine. Ensure that the EN bit stays on until the Done
bit signals that the execution of the subroutine has completed.
Turn on the START parameter to copy the new time values to the configuration/profile table
and sends a SRATE command to the Axis of Motion. For each scan when the START
parameter is on and the Axis of Motion is not currently busy, the subroutine sends an
SRATE command to the Axis of Motion. To ensure that only one command is sent, use an
edge detection element to pulse the START parameter on.
The ACCEL_Time, DECEL_Time, and JERK_Time parameters determine the new
acceleration time, deceleration time, and jerk time in milliseconds (ms).
The Done parameter turns on when the Axis of Motion completes this subroutine.
The Error parameter (Page 545) contains the result of this subroutine.

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.