Endress+Hauser Profi Bus Levelflex M FMP40 - Page 51

Levelflex M FMP40 with PROFIBUS PA Operation
Endress + Hauser 51
5.5.2 Device address
Selecting the device address
• Every PROFIBUS-PA device must be given an address. If the address is not set correctly, the
device will not be recognised by the process control system.
• A device address may appear only once within a particular PROFIBUS-PA network, see BA 198F.
• Valid device addresses are in the range 1 and 126. All devices are delivered from the factory with
the software address 126.
• The default address can be used to check the function of the device and connect it to an operating
PROFIBUS-PA system. Afterwards the address must be changed to allow other devices to be
connected to the network.
Software addressing
Software addressing comes into operation, when DIP-switch 8 is in the position "ON". BA 198F/
00/en, chap. 5.7 describes, how to set the address in this case.
In ToF Tool, the address can be set via the "Set address" function in the "Device" menu.
Hardware addressing
L00-FMU4xxxx-19-00-00-en-014
Hardware addressing comes into operation, when DIP switch 8 is in the position "HW (OFF)". In
this case the address is determinded by the position of DIP-switches 1 to 7 according to the
following table:
The new address becomes valid 10 seconds after switching.
It results a new device restart.
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Switch No. 1234567
Value in position "OFF" 0 0 0 0 0 0 0
Value in Position "ON" 1 2 4 8 16 32 64