84 Appendix
WAGO-I/O-SYSTEM
750
750-657 IO-Link Master
Manual
Version 1.0.2, valid from FW/HW-Version 02/01
The telegrams are transmitted in the form of a message and structured as follows:
Figure 33: Telegram structure of a Mailbox 2.0 message
11.1.2.1 Parameter Access Service "IOL_CALL"
The "IOL_CALL" service is identified by Mailbox Protocol ID 1.
The message is structured as follows:
Figure 34: Telegram structure, parameter access with "IOL_CALL"
Mailbox 2.0 message
10 LEN_HI LEN_LO Protocol_ID Payload byte 1..N
Telegram header DATA
Mailbox 2.0 message
10 LEN_HI LEN_LO
Protocol_ID = 1
Payload byte 1..N
Telegram header DATA
Entity_Port FI_INDEX_HI FI_INDEX_LO Control DATA