TPMU is regularly switched on together with the DSLP. Common data are downloaded from REDU web site, processed and stored. The device is working with limitations of scientific measurements caused by a bug in installed onboard software. This brings lower data volume as it was planned. Affected are Ion measurement and partially electron temperature measurement, which is usable, but needs a special processing. The measurement of the floating potential and housekeeping measurements are not affected. This limited function of the instrument is stable and lasting since the beginning of the mission. The TPMU hardware is in a good condition and its behaviour is stable. No anomalies have been observed. The internal temperature and power consumption are in expected limits.