Siemens Panel PC 870 appendix Simatic Panel PC 670/870 Start-Up Instructions

Release 11/02 Connecting and Switching On the Panel PC 670/870

Note

When using standard USB peripheral devices, note that their electromagnetic interference immunity is often only sufficient for office environments. For startup and maintenance purposes, such devices are adequate. However, components suitable for the industrial environment must be used for the process operation.

The USB peripheral devices (e.g. keyboard, printer) are developed and marketed by individual vendors. Support for the USB periphery devices is provided via the respective product supplier. The terms of liability of the individual vendors or suppliers shall apply.

The following types of USB peripheral devices can be distinguished:

•low power USB components:

max. 100 mA current; e.g. mouse, keyboard,

•high power USB components:

max. 500 mA current; e.g. hard disk, floppy drive etc.

In the case of Panel PC 670/870 with power supply up to model edition C (refer to rating plate Figure 1–3), the following applies:

•High power USB devices can only be used with the front USB port of the Panel PC 670 if those devices have their own power supply or the devices are connected via an external USB hub with a separate power supply.

•This restriction is not applicable for operating units with a power supply from edition model D (refer to rating plate).

SIMATIC Panel PC 670/870 Start-Up Instructions 2–19