14-3
OP27,
OP37 Equipment Manual
Release 05/99
14.2 Recommissioning
When
recommissioning, the configuration/firmware already loaded in the OP
is replaced by another
. Downloading can be performed by means of
serial download or
MPI download (for SIMA
TIC S7).
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.
Step Action
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:
In routine operation
The method of changing to Download mode online using the System
Settings standard screen is described in Chapter 11.1.
In the startup phase of the OP
Continue at Step 3.
3
Press the following key combination during
startup:
+
ESC
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.
ESC
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.
+
+
ESC
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:
DEL
INS
After an erase/initialize operation, the OP changes to Download mode.
Types of
downloading
Serial download
Commissioning
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