IFM AL1340, Руководство по эксплуатации

Страница: 60 / 129

IO-Link Master with Modbus TCP Interface DataLine 4 Ports IP 65 / IP 66 / IP 67
60
>
POST request
54700
Using a POST request the user has read and write access to a data point.
The syntax of the request to the IoT Core is:
{
"code":"code_id",
"cid":id,
"adr":"data_point/service",
"data":{req_data},
"auth":{"user":"usr_id","passwd":"password"}
}
Field Parameter Description
code code_id Service class

request Request

transaction Transaction

event Event
cid id Correlation ID for the assignment of request and response; vom Nutzer frei vergebbare
Kennung
adr data_point Data point of the element tree which is to be accessed
service Service to be performed (
→
Overview: IoT services (
→ S.
119 ))
data* req_data Data to be transferred to the IoT Core (e.g. new values); syntax depending on the service
auth** usr_id user name (base64 coded); default value: administrator
password password (base64 coded)
* = optional; only required for services, that submit data to the IoT core (e. g. setdata)
** = optional; only required, if security mode is activated
The syntax of the return of the IoT Core is:
{
"cid":id,
"data":{resp_data},
"code":diag_code
}
Field Parameter Description
cid id Correlation ID for the assignment of request and response (see request)
data* resp_data Value of the data point; syntax depending on the service
code diag_code Diagnostic code (
→
IoT Core: Diagnostic codes (
→ S.
62 ))
* = optional; only required for services, that receive data from the IoT core (e.g. gettdata)