Configuration Of Io-Link Devices; General; Function Block; Read - Balluff BNI PNT-508-005-E002 User Manual

Balluff Network Interface ProfiNet™
6

Configuration of IO-Link devices

General

Function block

Read

Write

www.balluff.com
IO-Link devices can be configured via the web server, function modules and the IO-Link
device tool.
When using the device tool as well as the web server the read and write accesses are taken
over by the software.
The function block "IOL_Call" constructs a telegram which is sent to the master using DPV1
functions. This requires the following settings:
Diagnostics The diagnostics address of Slot 1 is used
address
CAP access 255
The sample project with the IOL_Call function module of Siemens AG can be downloaded
on the Balluff homepage.
The telegram structure is described in the following table:
Area Size in bytes
Call header 1
1
2
IO-Link header 1
2
1
Data range 232
To read out data, the master must be given a reading task for the corresponding
slot/index/subindex.
The telegram must be adapted accordingly for this purpose (slot, index), and 0x03 for
reading must be entered under "Task".
The telegram can then be sent by write instruction to the corresponding module.
The module reads the data from the IO-Link device.
The data can be retrieved by reading with the same telegram.
To write data, the master must be given a writing task for the corresponding
slot/index/subindex.
The telegram must be adapted accordingly for this purpose (slot, index), and 0x02 for writing
must be entered under "Task".
The telegram can then be sent by write instruction to the corresponding module.
Value Definition
08h 08h for "CALL", fixed
0 IOL master
1...63
Port number
64...255
Reserved
65098 FI_Index, IO-Link header is following
0...255
Task
2 = write
3 = read
0...3276
IO-Link index
7 Port function
65535
0...255
IO-Link subindex
Range of the data to be written or
read
23