IO-Link master with EtherCAT interface DataLine 4 ports IP 65 / IP 66 / IP 67
39
>
9.2.2
First steps
52245
To read the device description of the AL1330:
► Send the following POST request to the AL1330:
{"code":"request","cid":-1,"adr":"gettree"}
>
AL1330 returns the device description as structured JSON object.
► Identify all substructures and the data points contained therein in the tree structure of the JSON
object.
► Identify the applicable services for the access to substructures and the data points contained
therein.
>
9.2.3
General functions
61148
The AL1330 has the type
device
(
→
Overview: IoT types
(
)).
The following services can be used on the root element of the type
device
:
Service
Description
../gettree
Provide the complete tree or subtree of the device description (JSON)
../getidentity
Reading device information
../getdatamulti
Reading several parameter values sequentially
../getelementinfo
Reading detailed information of an element
../getsubscriberlist
Print a list of all active notification subscriptions
../querytree
Search device description for specific elements
Depending on the read and write access rights, the following services can be applied to elements of
type
data
:
Service
Description
../getdata
Reading the value of the element
../setdata
Write the value of the element