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5
Startup (continued)
5.4.1 Station address
Values from 0 to 125 can be set for the station address.
Every address may only be assigned once in a network!
For the value 126, the address 126 or the address most
recently set by the Set_Slave_Address service is used.
With the value 127, the BTL can be reset to factory
settings. As the value 127 is not a valid address, no
operation on the bus is possible.
S1.1
S1.2
S1.3
S1.4
S1.5
S1.6
S1.7
2
0
2
1
2
2
2
3
2
4
2
5
2
6
LSB
MSB
1
2
4
8
16
32
64
Tab. 5-1: Station address
All address setting are applied by the BTL after a re-start.
Thus, changes that are made while supply voltage is
present do not have an immediate effect.
5.4.2 Bus termination
For a safe quiescent level, the bus must be terminated at
both ends in accordance with Fig. 4-10. The BTL allows
for internal bus termination by setting DIP switches S1.9
and S1.10 to ON (see Fig. 5-2).
For IP67, the bus termination resistance suggested in
Fig. 4-10 on page 11 must be used. Then, the internal
bus termination must not be activated (S1.9 and S1.10 set
to OFF)! If possible, stubs are to be avoided.
5.4.3 LED display for Profibus encoder profile
LED
red
(BF)
1)
LED
green
Meaning
Cause
Off
Off
No supply
voltage
On
On
No connection
to another
participant (no
Data_Exchange)
– Bus not
connected
– Master
unavailable/off
On
Flash-
ing
2)
Parameter error,
no
Data_Exchange
– Slave is not
configured or
configured
incorrectly
– Incorrect station
address assigned
(within the
permissible range)
– Incorrect PRM or
CFG telegram
received
Flash-
ing
2)
Flash-
ing
2)
Position error
No magnet in the
valid measuring
range or number of
magnets is incorrect
Off
On
Data_Exchange
Slave and
function O.K.
BTL functions,
everything O.K.
1)
BF = bus error
2)
Flashing frequency 0.5 Hz
Tab. 5-2: LED display for Profibus encoder profile
If multiple malfunctions are present at the same time, the
malfunction with the highest priority is displayed.
Detailed configuration instructions
can be requested on the Internet at
www.balluff.com
or via email at
.
BTL5-T1 _ _ -M _ _ _ _ -P-S103
Magnetostrictive Linear Position Sensor – Profile Style