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Electrical connection
Leuze electronic
BCL 604i
34
Table 7.5:
Pin assignment BUS OUT
7.7
PROFIBUS termination
The last physical PROFIBUS participant must be terminated with a terminating resistor (see chapter 15
"Ordering information and accessories") on the BUS OUT socket.
7.8
Cable lengths and shielding
Observe the following maximum cable lengths and shielding types:
Table 7.6:
Cable lengths and shielding
Pin
Name
Comment
1
VP
+5VDC for bus termination
2
A (N)
Receive/transmit data A-line (N)
3
GND 48
5
RS 485 ground reference for bus termination
4
B (P)
Receive/transmit data B-line (P)
5
FE
Functional earth / shield
Thread
FE
Functional earth (housing)
NOTICE
Ensure adequate shielding. The entire interconnection cable must be shielded and earthed.
Connection
Interface
Max. cable length
Shielding
BCL – service
USB
3 m
Shielding absolutely
necessary acc. to USB
specifications
BCL – host
PROFIBUS DP
Acc. to PNO specifications Acc. to PNO specifica
-
tions
BCL – power supply
unit
30 m
Not necessary
Switching input
10 m
Not necessary
Switching output
10 m
Not necessary