Integration of the LES 36…/PB in the PROFIBUS
Leuze electronic
LES 36
116
TNT
35/7-2
4
V
11.2
PROFIBUS address assignment
The various possibilities for setting the slave address are described in the following. Auto-
matic address assignment via the PROFIBUS (slave address
126
) is preset.
Automatic address assignment
The LES 36…/PB supports automatic detection of the baud rate and automatic address
assignment via the PROFIBUS.
The address of the PROFIBUS participant can be set automatically by the commissioning
tool of the PROFIBUS system (a class 2 PROFIBUS master). For this purpose, the slave
address must be set to value
126
in the sensor (factory setting).
The commissioning master checks whether a slave has address
126
and then assigns this
slave a node address smaller than
126
. This address is permanently stored in the participant.
The changed address can then be queried (and, if necessary, changed again) via the display
or LESsoft.
Address assignment with LESsoft
The PROFIBUS slave address can be set via LESsoft. This setting can be stored on the PC
together with the other sensor settings.
Figure 11.1: PROFIBUS address assignment with LESsoft
Address assignment with membrane keyboard and display
Setting the address with the key pad and display allows the sensor to be integrated in a
PROFIBUS system while in the field with no additional tools. See "Slave Address" on
page 55. The set address can also be queried by the user with no additional tools.
Note!
After changing the PROFIBUS slave address via LESsoft or with the display/key pad, a
power-on reset must be performed in order to permanently accept the address.
