UK
Encoder with ProfiNet interface
11
Implementation
Function
Class 3
Class 4
Measuring units per revolution (32bit)
- / • *
•
Total resolution (32bit)
- / • *
•
Measuring units per revolution (64bit)
- / • *
•
Total resolution (64bit)
- / • *
•
Maximum master sign-of-life failures
- / • *
•
Velocity measuring unit
- / • *
•
Encoder profile version
•
•
Operating hours counter
-
-
Offset value
- / • *
•
Offset value at 64 bits
- / • *
•
Round axis function
•
•
Velocity filter
•
•
* If class 4 functionality is activated
8.4 Signal list for cyclic data transmission
Signal no.
Meaning
Abbreviation
Length (bit)
Sign
3
Master's sign-of-life counter
STW2_ENC
16
-
4
Slave's sign-of-life counter
ZSW2_ENC
16
-
6
Velocity value A
NIST_A
16
•
8
Velocity value B
NIST_B
32
•
9
Control word
G1_STW
16
-
10
Status word
G1_ZSW
16
-
11
Position value 1
G1_XIST1
32
-
12
Position value 2
G1_XIST2
32
-
13
Position value 3
G1_XIST3
64
-
8.4.1 Format of position value
Note:
G1_XIST1 and G1_XIST2 are the actual position values in binary format� The
alignment in the data-frame (left or right-aligned) is considered for each individual
resolution� For absolute encoders an example is given below�
The alignment of the output format (left or right-aligned) remains constant and affects the actual
resolution� The number of bits provided changes depending on the resolution�
Example
25 bit multiturn absolute encoder (8,192 steps per revolution, 4,096 revolutions)�
