Siemens SITRANS LR460 HART Operating Instructions Manual page 126

Power Demands
To determine how many devices can be connected to a bus line, calculate the combined
maximum current consumption of all the connected devices: 10.5 mA for SITRANS LR460.
Allow a current reserve for safety.
PROFIBUS address
A unique PROFIBUS address identifies each device on the network. To set the PROFIBUS
2. 1 .2. Address (ADDR) on page 49.
address see
Notes:
• 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:
a.Open the menu Device - Device Reset
b.Select the option Address Reset. The address is reset to 126 and the address
lock is disabled.
• Via the handheld programmer:
a.Navigate to Identification (2.) > Configuration (2. 1 ) > Reset (2.1.4).
b.Press RIGHT Arrow to open Edit Mode and DOWN Arrow to scroll down to
select Reset Device. The address will be reset to 126. If the address lock was
on, it will be disabled.
Operating as a Profile Device
Every manufactured PROFIBUS product has a unique PROFIBUS identification number
which identifies it to the system. PROFIBUS Profile Standard version 3.01 also defines a
Profile Model which can identify a product as a generic profile device on the network.
SITRANS LR460 can be identified in one of three ways:
Device Identification
SITRANS LR460
1 Analog Input Function Block
Device
2 Analog Input Function Block
Device
Defining the device as Profile-specific as opposed to Manufacturer-specific makes it
possible to exchange the device for any other device of the same profile type without
changing the GSD file.
To set up SITRANS LR460 as a profile device see
NUM) (PROFIBUS PA only) on page 54.
Page G-120 SITRANS LR460 (PROFIBUS PA) – INSTRUCTION MANUAL
Profile Model
Manufacturer-specific [uses Siemens DD and GSD file, which
identifies the LR460 (PROFIBUS PA)].
Profile-specific [uses generic GSD for 1 AIFB (ident # =
0x9700)]
Profile-specific (uses generic device DD and profile GSD for
class B device)
2.2.3. PROFIBUS Ident Number (IDENT
A5E42035355