Machine Data List - Siemens SIMATIC S7-300 Manual

Machine data list

All machine data of the FM 354 are listed in Table 5-5.
Notes to the machine data list:
K stands for configuration data: see Section9.3.3
E stands for user-definable machine data settings for readjustment (startup
optimization) and technology; see Section 9.3.3
The units of measurement refer to the value representation in the machine
data DB.
Table 5-5 Machine data list
No. Designation
1...4
5 E Process interrupt gen-
eration
6 Axis name
7 K System of measure-
ment
8 K Axis type
2)
9 K Rotary axis end
10 K Encoder type
11 K Travel per motor revo-
lution (division
2
period)
12 K Residual distance per
encoder revolution
2
(division period)
13 K Increments per en-
coder revolution (divi-
2
sion period)
14 K Number of rotations –
absolute encoder
MSR = measurement-system grid
1) The variable axis name is implemented as an axis letter (X, Y, Z, ...) with an address extension (1...9).
Permissible characters: X, Y, Z, A, B, C, U, V, W, Q, E, 1...9
2) see Dependencies
FM 354 Servo Drive Positioning Module
Default
Value/Meaning
values
0 0 = Position reached
1 = Length measurement completed
3 = Change block on-the-fly
4 = Inprocess Measurement
X max. 2 ASCII characters
–3
1 1 = 10 mm
–4
2 = 10 inch
–4
3 = 10 degrees
–2
4 = 10 degrees
0 0 = linear axis
1 = rotary axis
5
36 10 0...1 000 000 000
1 0 = not present
1 = incremental encoder
3 = absolute encoder (SSI, 13-bit)
4 = absolute encoder (SSI, 25-bit)
13 = absolute encoder (SSI, 13-bit)
14 = absolute encoder (SSI, 25-bit)
10 000 1...1,000,000 ,000
32
0 0...2 –1
1 25
2 500 2 ...2
0 0/1 = single-turn encoders
1 12
2 ...2 for multi-turn encoders
RPS = reference-point switch
Defining Parameters of the FM 354
Data type/
Unit/Comments
open
BITFIELD32
1)
4 bytes
DWORD (MSR)
DWORD
DWORD (MSR)
DWORD
GRAY Code
GRAY Code
Binary Code
Binary Code
DWORD (MSR) (in-
teger component)
–32
DWORD (2 MSR)
(fractional compo-
nent)
DWORD
With incremental en-
coders, evaluation
takes place at 4 MD.
DWORD
Only powers of two
are allowed.
e.g.: "X", "X1"
See
Section
9.10
9.4
9.5
9.6.1
9.6.2
5-11