Function description
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40
5.5
Functions for the acyclic communication via IO-Link CALL
The acyclic access to the data of IO-Link devices is realized via IO-Link CALLs.
Therefore it is necessary to distinguish between data of an IO-Link master or of an IO-Link device.
The addressing of the IO-Link CALL is realized via the so called Entity_Port- It defines which device
is addressed via the CALL:
Entity_Port 0 = IO-Link master module (IOLM - BL20/BL67-4IOL)
Entitiy_Port 1 = IO-Link device at 1st channel
Entitiy_Port 2 = IO-Link device at 2nd channel
Entitiy_Port 3 = IO-Link device at 3rd channel
Entitiy_Port 4 = IO-Link device at 4th channel
5.5.1
Port functions for port 0 (IO-Link master)
IO-Link-Index (Port function invocation)
The access to the IO-Link master functionalities (port 0) is done via index:
65535
Subindex 64: Master Port Validation Configuration
This object serves for writing a defined configuration of the IO-Link ports into the master. The mas-
ter stores the data for the IO-Link device expected at the port and only accepts a device at the port
which has exactly the same data (Vendor-ID, Device-ID and Serial Number).
The usage of Master Port Validation Configuration is only reasonable if the parameter
Mode (Seite
20)
is set to a value with validation ("IO-Link with family compatible device", "IO-Link with compat-
ible device", "IO-Link with identical device").
Struture of the command
IOL_Port_Config
:
Entity_
Port
IO-Link
subindex
Read
Write
Length
0
64
w
max. 96 byte
Content
Size
Format
Comment
IOL1
VENDOR_ID
2 byte
Unsigned 16
DEVICE_ID
4 byte
Unsigned 32
FUNCTION_ID
2 byte
Unsigned 16
Value: 0
SERIAL_NUMBER
16 byte
String
IOL2
VENDOR_ID
2 byte
Unsigned 16
DEVICE_ID
4 byte
Unsigned 32
FUNCTION_ID
2 byte
Unsigned 16
Value: 0
SERIAL_NUMBER
16 byte
String
Содержание BL20-E-4IOL
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