A method of signaling between a photovoltaic module and an inverter module. The inverter module is connected to the photovoltaic module. In an initial mode of operation an initial code is modulated thereby producing an initial signal. The initial signal is transmitted from the inverter module to the photovoltaic module. The initial signal is received by the photovoltaic module. The operating mode is then changed to a normal mode of power conversion, and during the normal mode of operation a control signal is transmitted from the inverter to the photovoltaic module. A control code is demodulated and received from the control signal. The control code is compared with the initial code producing a comparison. The control command of the control signal is validated as a valid control command from the inverter module with the control command only acted upon when the comparison is a positive comparison.

A tape cassette is provided with a cassette case, a tape, a tape discharge portion, a first indicator portion, a first indicator member and a first attachment portion. The cassette case includes a bottom case and a top case. The tape is a print medium. The tape discharge portion discharges the tape from the cassette case. The first indicator portion includes at least one indicator hole and indicates a type of the tape. The first indicator member is provided with the first indicator portion. The first attachment portion is provided on an upstream side of the tape discharge portion and to which the first indicator member is attached.

A method for controlling formation of glass bumps in a glass article with laser-irradiation without the use of a growth-limiting structure. Standard deviation of height between the glass bumps on the article is less than 1 micron by controlling the laser radiation dose provided on the glass article.

A tape cassette includes a cassette case, a tape containment area, a first wall portion, a guide portion, a second wall portion, a third wall portion, and a fourth wall portion. The cassette case includes a top face, a bottom face, a front face, and a pair of side faces. The tape containment area is an area in which a tape roll is accommodated. The first wall portion is provided along a portion of an outer perimeter of the tape containment area. The guide portion is provided downstream from the first wall portion on a feed path. The second wall portion is provided between the first wall portion and the guide portion. The third wall portion is provided on an opposite side of a tape from the second wall portion. The fourth wall portion is provided between the second wall portion and the guide portion.