Siemens PC 870 manual Operating units with touchscreen front panels, Operation, Status indicators

Description of Device

2.2Operating units with touchscreen front panels

The 12.1º version and the 15.1º version of the touchscreen front panels differ in their dimensions and the size of their displays. The 12.1º ver- sion does not have drill holes (covers) at the sides.

Figure 2-7 shows the 15.1º version as an example to illustrate the sta- tus indicators, the USB interface and the display.

Status indicators Display

OK

USB interface *)

*) not present on NEMA-standard front panels (see Appendix: Technical Data)

Fig. 2-7 Example:15.1º operating unit with touchscreen front panel

Operation	The device is operated by touching the touch-sensitive display with
	your finger in accordance with the functions displayed for that specific
	application, e.g. by applying pressure to a displayed button.
Status indicators	Information about the operation status is supplied by the two LEDs at
	the upper left side of the keyboard (see paragraph 2.1.1):
	￿ The left LED (ºPOWERº) lights when the power supply works
	￿ The right LED (ºTEMPº) lights when a temperature threshold is ex-
	ceeded (see ªSOM±programº in chapter 7 of the ªComputing Unitº
	manual).

2-6	SIMATIC Panel PC 670 / 870 Operating Unit, Equipment Manual
	Edition 07/01