
IMJ00503 V3E.DOC Page 15 of 40 19.02.2009
4.5.4 Slave Address
A Profibus address can be assigned, with due consideration of other participants in bus
communications, to any number from 0 to 125.
The setting of an address can be achieved by triggering an SSA command via the Profibus. For
details on how to change a previously set slave address via the configuring tool, you should
consult the special tool documentation. In as delivered state, the slave is set to the address “4”.
A currently set slave address is permanently stored in the EEPROM. It is also preserved in the
event of a power failure.
Where more than one slave (LMCJ00503) communicates via one Profibus, they must be
connected in series and each of them must be assigned a different address.
4.5.5 Bus Termination
For LMC J 0050 3 operation, the bus must be fitted with an external terminator. 5 V supply
voltage for bus termination can be drawn from the Profibus OUT. This voltage is electrically
isolated from actual operating voltage supply (VCC) and provides 100 mA current load capacity.
The terminating resistor is available as an accessory item.
4.5.6 Baud Rate
The LMC J 0040 3 is prepared to automatically detect any of the following baud rates:
9.6 / 19.2 / 93.75 / 187.5 / 500 kbaud and 1.5 / 3 / 6 / 12 Mbaud, respectively.
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