Siemens SITRANS LG240 Operating Instructions Manual page 27

Instrument address
PBD-51041044
Setup: Settings, e.g. measurement loop name, medium, application,
vessel, adjustment, AI FB 1 Channel - Scaling - Damping, device
units, false signal suppression, linearization
Display: Language setting, settings for the measured value indication
as well as lighting
Diagnosis: Information, for example on the instrument status, pointer,
measurement reliability, AI FB 1 simulation, echo curve
Additional adjustments: Sensor address, PIN, date/time, reset,
copy sensor data
Info: Instrument name, hardware and software version, date of manu-
facture, instrument features
Note:
For optimum adjustment of the measuring point, the individual sub-
menu items in the main menu item "Setup" should be selected one
after the other and provided with the correct parameters. If possible,
go through the items in the given sequence.
The procedure is described below.
The following submenu points are available:
The submenu points are described below.
6.4.1 Setup
An address must be assigned to each Profibus PA instrument. Each
address may only be assigned once in the Profibus PA network. The
sensor is only recognized by the control system if the address is set
correctly.
When the instrument is shipped, address 126 is set. This address can
be used to test the function of the instrument and to connect it to a
Profibus PA network. Then the address must be changed to integrate
additional instruments.
The address setting is carried out either via:
•
The address selection switch in the electronics compartment of
the instrument (address setting via hardware)
•
The display and adjustment module (address setting via software)
•
PACTware/DTM (address setting via software)
Hardware addressing
Hardware addressing is effective if an address less than 126 is set
with the address selection switches on the electronics module of
SITRANS LG240. In such case, software addressing has no effect -
only the set hardware address applies.
SITRANS LG240 - Operating Instructions
27