Operating Instructions
Chapter
3
AFS60/AFM60 EtherNet/IP
35
Product description
3.5.2
Slave Sign of Life
The AFS60/AFM60 EtherNet/IP supports Slave Sign of Life functionality.
It is transferred in bit 30 of the fault header. It is used so that the control system can de-
termine whether the encoder is in operation, even if it is not providing any position data
(standstill).
The bit changes its value at the update cycle configured.
The update cycle is formed from the Requested Packed Interval (RPI) and an update
factor. The RPI can be between 2 and 750 ms:
update cycle = RPI × update factor (default value = 5)
The update factor is defined using attribute 106 in the Position Sensor Object (see Tab. 19
on page 28).
The value supported is dependent on the RPI time for the encoder connection. The mini-
mum update cycle should be twice as long as the RPI (with RPI = 750 ms therefore
1500 ms).
3.5.3
Code sequence
The code sequence defines the direction of rotation, viewed on the shaft, in which the
position value increases.
clockwise = increasing position value on clockwise revolution of the shaft
counterclockwise = increasing position value on counterclockwise revolution of the
shaft
3.5.4
Scaling
Scaling makes it possible to scale the steps per revolution and the total resolution.
Only if the parameter
Scaling
is configured to
Enable
are the values entered for the steps
per revolution and the total resolution applied.
3.5.5
Steps per revolution x
The resolution of the AFS60/AFM60 EtherNet/IP Basic is max. 32,768 steps per revolu-
tion. Its resolution can be scaled from 1 … 32,768 as an integer.
The resolution of the AFS60/AFM60 EtherNet/IP Advanced is max. 262,144 steps per
revolution. The resolution can be scaled from 1 … 262,144 as an integer.
The parameter is not used if the round axis functionality (see 3.5.9 on page 36) is
activated.
3.5.6
Total resolution/measuring range x
The total resolution, that is the measuring range of the AFS60/AFM60 EtherNet/IP, is max.
134,217,728 (Basic) or 1,073,741,824 (Advanced) steps. The total resolution must be 2
H
times the steps per revolution.
Steps per revolution
n
Total resolution
1,000
3
8,000
8,179
5
261,728
2,048
11
4,194,304
This restriction is not relevant if the round axis functionality (see 3.5.9 on page 36) is
activated.
Note
Note
Tab. 20: Examples for total
resolution
Note
8018909/1EH9/2021-12-16
Subject to change without notice
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