88 Appendix
WAGO-I/O-SYSTEM
750
750-657 IO-Link Master
Manual
Version 1.0.2, valid from FW/HW-Version 02/01
The following applies to the message:
Figure 35: Data area ISDU, IOL-M, command register
The IOL_Index, IOL_Subindex and IOL_Data_Object bit arrays are described as
follows:
Table 50: IOL_CALL, ISDU
Bit field
Data type
Value
Description
0 - 32767 IO-Link ISDU index of the request
IOL_Index
UNSIGNED16
65535
Port function invocation
IOL_Subindex
UNSIGNED8
0-255
If IOL_Index = ISDU index of the request:
IO-Link ISDU subindex of the request
For write request:
User data to be written
IOL_Data_Object
UNSIGNED8
[1…239]
Var.
For read request:
Read user data or IO-Link error PDU
Telegram header DATA
Mailbox 2.0 message
10 LEN_HI LEN_LO Protocol_ID Payload byte 1..N
Entity_Port FI_Index_HI FI_Index_LO Control IOL_INDEX_HI IOL_INDEX_LO IOL_SUB_INDEX DATA