•
The {clientHeadTopic} variable can be assigned via the WebUI. The MAC address is
used as the default value.
•
The BasePath is oriented on the REST API standard and is defined at: /iolink/v1
•
Via [Domain]/{Parameter}, the respective message is identified:
e.g.: /masters/{masterNumber}/ports/{portNumber}/configuration
•
The payload of the message is formatted equivalent to the REST API and can
be taken from the OPEN API document, see "Available variables and methods",
page 45 or www.sick.com.
Table 36: MQTT topics
Domain Topic Description
gateway {clientHeadTopic}/iolink/v1/gate‐
way/identification
Read out of identification data (e.g. MAC
address or serial number of the device)
{clientHeadTopic}/iolink/v1/gate‐
way/capabilities
Information on device functions
{clientHeadTopic}/iolink/v1/gateway/con‐
figuration
Read out of device or Ethernet configura‐
tion (e.g. DHCP or IP address)
masters {clientHeadTopic}/iolink/v1/mas‐
ters/{masterNumber}/identification
Read out of identification data of the spe‐
cific IO-Link Master (e.g. vendor ID, serial
number or firmware version)
{clientHeadTopic}/iolink/v1/mas‐
ters/{masterNumber}/capabilities
Read out of functions of the specific IO-
Link Master (e.g. the number of ports or
the maximum voltage supply)
{clientHeadTopic}/iolink/v1/mas‐
ters/{masterNumber}/diagnostics/config‐
uration
Diagnostics configuration (e.g. max./min.
voltage, temperature, current)
{clientHeadTopic}/iolink/v1/mas‐
ters/{masterNumber}/diagnostics/value
Average value of supply voltage, tempera‐
tures and total current
OPERATION 8
8027834./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
51
Subject to change without notice
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