
8 Configuration and operation in
TwinCAT
®
3
8.2 Device parameters
8.2.11 IO-Link Parameterization
The device features read or write of ISDU (IO-Link Service Data) parameters
via SDO 0x40n0.
SDO
SDO content
Index
Size
Index
Size
Type
Name
0x40n0:1
1
UINT8
Control
0x00: no action
0x02: write
0x03: read
0x40n0:2
1
UINT8
Status
0x00: no activity
0x01: active / busy
0x02: access
0x04: error
0xFF: failure
0x40n0:3
1
UINT8
Index
0x40n0:4
2
UINT16
Subindex
0x40n0:5
1
UINT8
Length
0x40n0:6
232
UINT232
Data
0x40n0
7
0x40n0:6
2
UINT16
Error Code
Key:
n = number between 0..7 (port number - 1)
Manual EtherCAT®
Version 1.1 04/2021
69