SICK HIPERFACE DSL - Page 94

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
PC_BUFFER0 PC_BUFFER1 PC_BUFFER2 PC_BUFFER3 PC_BUFFER4 PC_BUFFER5 PC_BUFFER6 PC_BUFFER7 PC_ADD_H PC_ADD_L PC_OFF_H PC_OFF_L PC_CTRL
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