IFM AL1940 - Page 46

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ifm Device Manual IO-Link Master with Modbus interface CabinetLine 8 Ports IP 20 (AL1940) 05 / 2018
Configuration IoT Core
>
Access ifm-IoT Core
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To activate the changes of the parameter values the IoT Core must have the respective write
access rights to the IO-Link master (→ Parameter [Access Rights]).
The ifm IoT Core supports HTTP requests. The following request methods are available.
>
GET method
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Using the GET method the user has read access to a data point.
The syntax of the request to the IoT Core is:
ip/datapoint/service
Description
Description
ip
IP address of the IoT port X23 of the IO-Link master
data_point
Data point which is to be accessed
service
Service
The syntax of the return of the IoT Core is:
{
"cid":id,
"data":{"value":resp_data},
"code":err_code
}
parameter
Description
id
Correlation ID for the assignment of request and return
resp_data
Value of the data point; depending on the data type of the data point
err_code
Error code (→ IoT Core: Diagnostic codes (→ p. 48))
Example:
Request (via browser): 192.168.0.250/devicetag/applicationtag/getdata
Return: {"cid":-1,"data":{"value":"AL1940"}, "code":200}