
Defining value
Offset
Value
Data size
1
2
Read access level
2
0
Write access level
3
15
Time overrun
4
70
Data type
5
04h – 16 Bit, unsigned
Mandatory
yes
The following table contains the possible values for the type of encoder and their mean‐
ing.
Table 56: Definition of the type of encoder.
Value (dec.)
Value (hex.)
Type of encoder
0
00 00h
Rotary encoder, bipolar counting
1
00 01h
Linear encoder, bipolar counting
2
00 02h
Rotary encoder, unipolar counting
3
00 03h
Linear encoder, unipolar counting
For this resource, access to the offset base is not meaningful as the size of the
resource data is smaller than the maximum for a "long message" transaction.
Table 57: Read type of encoder.
Transaction
Register
P
C_BUFFER0
P
C_BUFFER1
P
C_BUFFER2
P
C_BUFFER3
P
C_BUFFER4
P
C_BUFFER5
P
C_BUFFER6
P
C_BUFFER7
P
C_ADD_H
P
C_ADD_L
P
C_OFF_H
P
C_OFF_L
P
C_C
TR
L
Write
54
80
00
00
01
Wait for FREL = 1
Read
Type of
encoder
8.4.2
Resolution
The resolution value defines the number of steps per rotation of the encoder (rotary
encoder) or the length of a measurement step in multiples of 1 nm (linear encoder).
Direct read access to resolution returns the defining values:
Table 58: Resolution defining values
Defining value
Offset
Value
RID
081h
Resource name
0
"RESOLUTN"
Data size
1
4
Read access level
2
0
Write access level
3
15
Time overrun
4
70
Data type
5
05h – 32 bit, unsigned
Mandatory
yes
The resolution value is given as a 32 bit unsigned value.
For this resource, access to the offset base is not meaningful as the size of the
resource data is smaller than the maximum for a "long message" transaction.
8
MOTOR FEEDBACK SYSTEM RESOURCES
94
T E C H N I C A L I N F O R M A T I O N | HIPERFACE DSL
®
8017595/ZTW6/2018-01-15 | SICK
Subject to change without notice