86 Appendix
WAGO-I/O-SYSTEM
750
750-657 IO-Link Master
Manual
Version 1.0.2, valid from FW/HW-Version 02/01
11.1.2.1.1 Telegram Header
The fields of the telegram header have the following function:
Table 44: IOL_CALL, Telegram header
Parameter
Data type
Description
Entity_Port
UNSIGNED8
Port number of the request
FI_Index
UNSIGNED16
Function index of the request
Control/State
UNSIGNED8
Control/status byte of the request
11.1.2.1.1.1 Entity_Port
The port number of the receiver is addressed via the "Entity_Port" field.
The structure is shown in the following table:
Table 45: IOL_CALL, Entity_Port data structure
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0 0
ENTITY_PORT
Table 46: IOL_CALL, Entity_Port data structure, description
Bit field
Value
Description
0
IO-Link master (module)
1 Port
1
2 Port
2
3 Port
3
4 Port
4
5…63 Not
used
ENTITY_PORT
64..255 Reserved