Siemens Simatic S7 Series System Manual

Open loop motion control
12.10 Advanced topics
S7-200 SMART
554 System Manual, 09/2015, A5E03822230-AC
Table 12- 43 Profile detail for Mode 1 (Relative position)
Byte offset
from start of
profile
Step
number
Name
Field size
Value
+0 STEPS byte n = Number of steps configured in this
profile
+1 MODE byte 0 = Relative position
+2
0
POS
dint/fp
Distance to travel in step 0
+6
SPEED
dint/fp
Target speed for step 0
●
●
●
(4 * n) + 2
n
POS
dint/fp
Distance to travel in step n
($ * N) + 6
SPEED
dint/fp
Target speed for step n
Table 12- 44 Profile detail for Mode 2 (Single-speed, continuous positive rotation) and Mode 3 (Single-
speed, continuous negative rotation)
Byte offset
from start of
profile
Step
number
Name
Field size
Value
+0
STEPS
byte
1
+1 MODE byte 2= Single-speed, continuous positive
rotation or
3 = Single-speed, continuous negative
rotation
+2
0
POS
dint/fp
n.a. (must be set to 0)
+6
SPEED
dint/fp
Target speed
Table 12- 45 Profile detail for Mode 6 (Single-speed, continuous positive rotation with triggered stop)
and Mode 7 (Single-speed, continuous negative rotation with triggered stop)
Byte offset
from start of
profile
Step
number
Name
Field size
Value
+0
STEPS
byte
1
+1 MODE byte 6 = Single-speed, continuous positive
rotation with triggered stop or
7 = Single-speed, continuous negative
rotation with triggered stop
+2 0 POS dint/fp Distance to travel after activation of RPS
signal (value must be positive)
+6 SPEED dint/fp Target speed

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.