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Firmware update – Siemens ESM User Manual

Page 77

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Industrial Ethernet OSM/ESM
C79000-Z8976-C068-10

73

Firmware Update

6

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

25-pin
Female

9-pin
Female

connected
to

OSM port 9-pin
Female

Signal Name

Pin

Pin

Pin

Signal name

TD (Transmit Data)

2

3

2

RD

RD (Receive Data)

3

2

3

TD

RTS (Request To
Send)

4

7

8

CTS

CTS (Clear To Send)

5

8

7

RTS

SG (Signal Ground)

7

5

5

SG

DSR (Data Set Ready)

6

6

4

DTR

DTR (Data Terminal
Ready)

20

4

6

DSR

This manual is related to the following products: