Siemens SIMATIC FM 452, Manual

Page: 85 / 210

Machine Data and Cam Data
8-17
FM 452 Electronic Cam Controller
C79000-G7076-C452-04
Address Name Type Initial Value Comment
32.0 INC_REV DINT L#500 Increments per encoder revolution:
Range of values:
1 to 2
25
Note
:
If you are using pulses as the unit, this entry has
no significance.
The “increments per encoder revolution” machine data specifies the number of increments output by an
encoder per revolution. Based on this value and the machine data “distance per encoder revolution”, the
FM 452 can calculate the resolution.
Incremental encoder
Any value from the range shown can be entered. One increment involves quadruple evaluation by the
module (see also Section 10.1, Page 10-2).
Initiator
Any value from the range shown can be entered.
Absolute encoder
The limits vary according to the type of encoder.
Note:
The number of pulses of an encoder is calculated from the machine data “increments per encoder
revolution” multiplied by “number of revolutions” (see page 8-20).
Encoder Type
Frame Length / Type Value Range Can be used as
linear axis
Single-turn
Single-turn
Single-turn
Multi-turn
Multi-turn
Listen-in
Listen-in
Multi-turn as
single-turn
Special setting:
13-bit half fir tree
13-bit right-justified
25-bit right-justified
25-bit fir tree
25-bit right-justified
Fir tree
right-justified
64 ... 8192 in powers of 2
64 ... 8192 all values
64 ... 2
25
all values
64 ... 8192 in powers of 2
64 ... 2
24
all values
64 ... 8192 in powers of 2
64 ... 2
25
all values
25-bit half fir tree 64 ... 8192 in powers of 2
X
X
X