How do I pipe temp data from 1W to kplex for distribution as NMEA0183

[CVL]

All NMEA 0183 data you get from serial or kplex tabs are sent to SK and automatically sent to TCP 10110.
All data you get from CAN tab or any sensor tab (GPIO, 1W, I2C...) are sent to SK and if you want to convert it to NMEA 0183 you have to use the "SK to NMEA 0183" SK plugin and it will be sent to TCP 10110 too.

when you connect a serial device and assign it to NMEA 0183 output in serial tab, you will send TCP 10110 data by this device with all the NMEA 0183 data of your system.

Ok, so I assigned on the serial tab the serial line going to the cockpit instrument to the NMEA output - sadly the temp still doesn't show up. Any way to debug this flow?
If I look with opencpn on the general tcp 10110 flux, a "IIMTW" sentence is there with correct data - I guess this would be the sentence which SK generated from 1W data?

cheers
Christian

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thanks
Christian