Instruction manual for devices of the MASI20 series
24
V 1.0
4 System configuration
4.1 Addressing
Each slave must be programmed with a unique address before setting up the AS-Interface system. To do
so, you can use an addressing device
8
or perform this configuration online via the master. Refer to the
corresponding description.
Addresses are non-volatile : they remain stored in the slave thanks to an
EEPROM even in case of power cutoff. Addressing is not limited.
According to the standard specifications, addresses can be assigned from 1 to 31.
For systems conforming to the extended specifications (up to 62 slaves) the available address range is
from 1A to 31A and 1B to 31B.
The installation of an appropriate master is required when using AS-Interface
systems conforming to the extended specifications !
In a system you can generally operate simultaneously slaves conforming to
standard specifications and slaves conforming to the specifications.
Is this case, standard slaves are identified as slaves of type 'A' by the master.
The same address that is not used in group 'B' is no more available.
New slaves that are not yet addressed are always allocated to the address 0. Although they have been
recognized by the master, they are not included into the communication process.
When replacing a slave while the system is operating (maintenance, repair, etc.) it is automatically
allocated to the address 0 by the master (
Ä
Chapter 4.3 Automatic configuration).
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Addressing device Art. No 55696
