IFM Electronic AL1900 - Example: Read the Parameter Value of an IO-Link Device; Example: Change the Parameter Value of an IO-Link Device

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ifm Device Manual IO-Link Master with PROFINET interface CabinetLine 8 Ports IP 20 (AL1900) 05 / 2018
Configuration IoT Core
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Example: Read the parameter value of an IO-Link device
16546
Task: Read the serial number of the ifm temperature sensor TN2531 at IO-Link port X02
Solution: Read the serial number with the iolreadacyclic service from the IO-Link device (index:
21, subindex: 0)
 Request object:
{
"code":10,
"cid":4711,
"adr":"/iolinkmaster/port[2]/iolinkdevice/iolreadacyclic",
"data":{"index":21,"subindex":0}
}
 Return object:
{
"cid":4711,
"data":{"value":"4730323134323830373130"},
"code":200
}
The returned value is given in hexadecimal format. The conversion of the HEX value in a STRING
value is: G0214280710
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Example: Change the parameter value of an IO-Link device
16578
Task: Set the output configuration OUT1 of the ifm temperature sensor TN2531 at IO-Link port X02 to
the value "Hnc / hysteresis function, normally closed".
Solution: Change the parameter [ou1] of the sensor to the value 4 using the iolwriteacyclicdata
service. The parameter can be accessed via IO-Link index 580, subindex 0 (→ IO-Link description of
the sensor).
 Request object:
{
"code":10,
"cid":4711,
"adr":"/iolinkmaster/port[2]/iolinkdevice/iolwriteacyclic",
"data":{"index":580,"subindex":0,"value":"34"}
}
The value has to be given in hexadecimal format. The conversion of the STRING value in a HEX value
is: 34.
 Response object:
{
"cid":4711,
"code":200
}