Siemens simatic hmi op27 Equipment Manual page 134

Figure 14-2 Settings in operating mode MPI Download
Fault diagnosis A fault occurring during commissioning or operation is normally displayed on
the OP by means of a system message.
Appendix D of this manual contains a list of some of the most important sys-
tem messages and explanations on how to eliminate them.
Data backup The operating data of the OP (tag values, message buffer) is stored in a buff-
ered SRAM and retained even in the event of a power failure. Operating data is
not lost if the power supply is turned off or fails.
OP27, OP37 Equipment Manual
Release 05/99
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MP I D O W N L OAD
MPI Baud Rate:
MPI OP Station Address:
Tel.:
Download Address:
serial-
Downl.
Commissioning
187.5 kBaud
2
FF
FF
ESC
14-5