Recommissioning - Siemens simatic hmi op27 Equipment Manual

14.2

Recommissioning

Types of
When recommissioning, the configuration/firmware already loaded in the OP
downloading
is replaced by another. Downloading can be performed by means of
S
S
Serial download
In the case of a serial downloading operation, the configuration/firmware is
transferred from the PC/PG to the OP via an RS232/TTY connection.
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serial download or
MPI download (for SIMATIC S7).
Step
1 Switch on the OP power supply.
2 Connect the IF2 interface (RS232/TTY) on the OP to the PU or PC by
means of a suitable standard cable.
There are two ways of setting the OP to Download mode:
S
In routine operation
The method of changing to Download mode online using the System
Settings standard screen is described in Chapter 11.1.
S
In the startup phase of the OP
Continue at Step 3.
Press the following key combination during
3
startup:
The OP changes to Download mode. The uppermost line of the display
shows Download mode.
Exit from Download mode by using the key
depicted on the right provided data is not being
downloaded between the PC or PU and the OP.
If the connection is in order, downloading of the configuration com-
mences. The OP firmware is downloaded automatically.
Following successful downloading, the OP restarts and displays the start
screen of the configuration that has just been loaded.
To reset the OP to a defined initial state before
downloading the configuration, press the key com-
bination depicted on the right before the OP
changes to Download mode.
It is now possible to erase or initialize the data medium. A detailed
description of how to do this is provided in Section 9.2.
Press the key shown on the right to confirm that
the data medium should be erased or initialized:
After an erase/initialize operation, the OP changes to Download mode.
Commissioning
Action
+
ESC
ESC
+
ESC
INS
DEL
+
14-3