Firmware Update - Siemens ESM Operating Instructions Manual

Firmware Update

With the OSM/ESM it is possible to update the firmware via the serial port.
You can obtain information on the firmware updates for OSM/ESM on the Internet
at
http://www.siemens.de/automation/service&support
specifying the keyword "OSM Firmware".
To download the firmware you require a PC with Windows 95/98/NT and the
Hyperterminal program available under Accessories. The download is explained
below based on the dialogs displayed in Hyperterminal.
Preparations
Connect the serial port of your PC and the OSM/ESM with a normal null modem
cable . Depending on the port of your PC that you select, you use a cable with a 9-
pin or 25-pin sub-D female connector at the PC end and a 9-pin female connector
at the OSM/ESM end.
The following table shows the pinning and the connections for both types of cable:
PC port
Signal Name
TD (Transmit Data)
RD (Receive Data)
RTS (Request To
Send)
CTS (Clear To Send)
SG (Signal Ground)
DSR (Data Set Ready)
DTR (Data Terminal
Ready)
Industrial Ethernet OSM/ESM
C79000-Z8976-C068-10
25-pin 9-pin connected
Female Female to
Pin Pin
2 3
3 2
4 7
5 8
7 5
6 6
20 4
6
OSM port 9-pin
Female
Pin Signal name
2 RD
3 TD
8 CTS
7 RTS
5 SG
4 DTR
6 DSR
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