Resource HTTP
Method
Description
/ports/{portnumber}/
diagnostics
/current
GET Read out of actual current values at the specific
port
/ports/{portnumber}/
diagnostics
/voltage
GET Read out of actual voltage values at the specific
port
/ports/{portnumber}/
diagnostics
/temperature
GET Read out of actual temperature values at the spe‐
cific port
8.2.1.5 Status code and error messages
Errors may occur when processing HTTP requests. Several errors are defined.
The following rules apply to troubleshooting:
•
If multiple errors occur while processing the request, only the first detected error is
responded to.
•
If no REST API commands are available, error 103 is returned.
Error messages are structured as follows:
{
“code”: 102,
“message”: “Internal communication error”
}
The following table provides an overview of the possible error codes:
Table 17: Error messages
Error
code
HTTP
code
Message Note
General error
101 500 Internal server error This error can occur with any request
102 500 Internal communication error This error can occur with any request
103 404 Operation not supported This error is returned if the requested
function does not exist.
104 400 Action locked by another client Fieldbus controller or another participant
blocks access
105 501 IODD feature not supported SIG350 does not support IODDs
106 501 MQTT feature not supported
150 403 Permission denied Access is not allowed. Check access
rights in the configuration. This error can
occur with any request.
JSON parsing error
201 400 JSON parsing failed Error while parsing the incoming JSON
value
202 400 JSON data value invalid Error while parsing a specific JSON value,
such as an incorrect IP address
203 400 JSON data type invalid E.g.: data type string instead of number
204 400 Enumeration value unknown
205 400 JSON data value out of range Exceeds the minimum or maximum value
OPERATION 8
8027836./2022-06-10 | SICK O P E R A T I N G I N S T R U C T I O N S | Sensor Integration Gateway - SIG350
43
Subject to change without notice
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