Moeller Rapid Link, Switching And Installation System, Page: 35 / 162

01/08 AWB2190-1430GB
Device operation
31
AS-Interface
®
deleting slave addresses
(assigning address 0 to a known slave)
In engineering mode, the addresses of all detected slaves are
displayed. When the Set key is pressed briefly, the master displays
the next free address. If the key is pressed for more than five
seconds while a known slave is displayed, “00” appears on the
display and the currently selected slave’s address is reset to 0.
When you release the key again, the display cycles through the
detected slaves again.
Addressing AS-Interface
®
slaves with configuration errors
Automatic addressing
For automatic programming the following conditions must be
fulfilled:
• RA-IN must be in protected operation mode.
• The Enable flag Auto_prog 1 must be set.
• There must not be more than one configured slave that is not
detected.
If these conditions are fulfilled, the LED “prg enable” is lit. As soon
as RA-IN detects a slave with address 0, it changes its address to
that of the missing slave.
Manual addressing
In protected operation mode incorrect assignments are displayed
as errors (
a
section “Configuration errors in protected operation
mode”, page 30). To view further incorrect assignments, press the
Set key. To select the currently displayed address as potential
target address, hold the Set key for at least five seconds. The
display then begins to flash.
If the faulty slave (flashing address) was first replaced with a slave
with address 0, the flashing address can now be assigned to the
new slave by briefly pressing the Set key again. A precondition is
that the new unit’s configuration data correspond with those
associated with the flashing address.
Once a slave has been successfully readdressed, the next incorrect
assignment is displayed and the process can be repeated.
Otherwise an error code (
a section “Digital display”, page 32) is
displayed. When all incorrect assignments have been corrected,
the display is blank.
Setting the PROFIBUS-DP station address
Station addresses
Station addresses from 1 to 99 can be set. The default station
address is “3”.
To change the address at the gateway, press the Set and Mode
keys at the same time for at least five seconds or until the
PROFIBUS address appears on the display. Each additional
operation of the Set key increments the station address by one.
When the desired PROFIBUS station address is displayed, press the
Mode key to accept it and save it permanently to the EEPROM.
First operation of the AS-Interface
®
circuit
Example procedure for commissioning an AS-Interface
®
circuit
quickly in six easy steps, regardless of connected equipment.
Simply assign addresses to the components connected to the
AS-Interface
®
with the interface control unit. You can usually also
configure complex networks directly at the AS-Interface
®
gateway
without additional tools. All further slaves’ addresses are assigned
in the same way.
Apply correct voltage supply
X
Connect the interface control unit to a power supply with the
correct voltage and switch on the power supply.
Following a self-test, the Power, Error, UASi and prj mode LEDs
light up. The display indicates “OFP” (RA-IN is in offline phase).
After a brief moment, “SEA” appears (RA-IN remains in detection
phase). The yellow prj mode LED is lit.
h One of the great advantages of AS-Interface
®
is its
automatic addresse programming. If a slave fails due to a
fault, it can be replaced with another, equivalent slave
with address 0. RA-IN detects defective slaves and
automatically assigns their address to the replacement
unit.
h
Automatic addressing is enabled by default.
h The AS-Interface
®
master can only readdress slaves that
have address 0.
h Caution!
Automatic address programming does not take place if
the two slaves contain different configuration data, i.e. do
not have the same AS-Interface
®
design or functionality.
h If several slaves fail, the AS-Interface
®
master can not
reprogram them automatically. In that case, the new
slaves’ addresses must be set manually. This can be done
through the interface to the higher-level system, with a
hand-held addressing unit or – as described below – with
the device’s keys and digital display.
h The AS-Interface
®
/PROFIBUS gateway can be addressed
according to the PROFIBUS standard as PROFIBUS slave
either locally at the gateway or through PROFIBUS.