User's Manual

Appendix C: Communications via PROFIBUS
C.5 PROFIBUS address
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
231
C.5
PROFIBUS address
A unique PROFIBUS address identifies each device on the network. To set the PROFIBUS
address see
Device Address (5.1.)
.
Note
•
It is possible to change the device address via a Class 1 master (for example, a PLC) and
lock the device address to prevent further changes.
•
If this Address Lock is on, the PA address cannot be changed. This lock can be
disabled only by performing an Address Reset.
Resetting the PROFIBUS address to 126
● Via SIMATIC PDM:
1. Open the menu
Device – Master Reset
and click on
Reset Address to 126
.
2. Click on OK: the address will be reset to 126, and if the address lock was on, it will be
disabled.
● Via the handheld programmer:
1. Navigate to
Service (4.) > Master Reset (4.1.)
. (You can enter the numeric value instead of
navigating via the Arrow keys.)
2. Press
RIGHT Arrow
to open Edit Mode then scroll down to
DEV ADDRESS
and press
RIGHT
Arrow
to select it. The address will be reset to 126, and if the address lock was on, it will be
disabled.
3. Press
LEFT
Arrow to exit.