Description of IO-Link
7100.006434_Bus description_PSD4xx_IO_G_ENG
22
17.08.2020
3.4.
Definition of process data
1)
Process
output
data 6 Byte (from the point of view of the IO-
2)
master)
Bit
Byte
Meaning
Corresponding IO-Link parameters
0..15
(16Bit)
0,1
Command byte
110
16..47
(32Bit)
2..5
Target position
112
2) Process
input
data 8 Byte (from the point of view of the IO Link master)
Bit
Byte
Meaning
Corresponding IO-Link
parameters
0..15
(16Bit)
0,1
Status byte
64, see 3.5
16..31
(16Bit)
2, 3
Actual rpm
66
32..63
(32Bit)
4..7
Actual position
68
Note:
The assignments cannot be changed.
Note:
Depending on the PLC used, the order of the bytes may be reversed.
3.5.
Detailed description of bits in the status byte
Bit 0
:
Target position reached
This bit is set:
- when a transferred target position has been reached successfully
- after running a start-up reference loop, when the actual value
corresponds to the previously transferred target value
This bit is reset:
- after transferring a target position if the release bit is set and when the
difference from the actual value is larger than the positioning window
(ISDU 123)
- by a manual run
- if an invalid target value has been transferred