6 Functional Description of the Ethernet Modules
6-20
6.4.3 Operating elements
Coding switch for adjusting the IP address
The possibility to adjust the IP address on every node is the prerequisite for connect-
ing the node to an IP network.
The AC 800F IP address is assigned or configured by the operating system, but it is
defined by setting the coding switch on the Ethernet module.
The coding switch is located at
the top edge of the Ethernet
module. Use a screw driver with a
blade width of 2 ... 2.5 mm for
setting the coding switch.
The switch can snap in positions
0 ... 9 and A ... F. It can be turned
both clockwise and counter-
clockwise.
Fig. 6-11 AUI module coding switch
Refer to Sections 5.3.1 and 5.4.4 for details.
Buffer battery
The 3.6 V lithium battery SB 808F, which is to be inserted in the battery holder
SY 809F is not included in the scope of delivery of the AUI module EI 802F and has to
be ordered separately.
The battery holder can be removed and plugged in at any time, while the module is
switched off or while it is running.
When the AC 800F is off, removing the battery holder when no module
with a buffer battery resides in the other E slot will cause a data loss.
The data in the main memory and the configuration of the real-time
clock will be lost then.
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