Electrical connection
Leuze electronic
BCL 504
i
77
TNT 35/7-24V
7.2.5
BUS OUT for the BCL 504
i
To set up the PROFIBUS with additional participants, the BCL 504
i
makes available another
interface of type
DP OUT - outgoing PROFIBUS DP
.
Notice!
Ensure adequate shielding. The entire connection cable must be shielded and earthed. For
connecting DP IN and DP OUT, we recommend the ready-made PROFIBUS cables. See
"Accessory ready-made cables for bus connection" on page 189.
7.2.6
PROFIBUS termination
The last physical PROFIBUS participant must be terminated with a terminating resistor (see
"Accessory terminating resistor" on page 187) on the BUS OUT socket.
7.3
Line lengths and shielding
ª
Observe the following maximum line lengths and shielding types:
BUS OUT RS 485 (5-pin socket, B-coded)
Pin
Name
Remark
1
VP
+5VDC for bus termination (termina-
tion)
2
A (N)
Receive/transmit data A-line (N)
3
GND 485
RS 485 ground reference for bus ter-
mination
4
B (P)
Receive/transmit data B-line (P)
5
FE
Functional earth / shield
Thread
FE
Functional earth (housing)
Table 7.5:
Pin assignment BUS OUT
BUS OUT
VP 1
2
3
4
A (N)
B (P)
GND485
FE
5
M12 socket
(B-coded)
Connection
Interface
Max. line length
Shielding
BCL – service
USB
3m
Shielding absolutely necessary
acc. to USB specifications
PROFIBUS
PROFIBUS DP
Acc. to PNO speci-
fications
Acc. to PNO specifications
BCL – power
supply unit
30m
not necessary
Switching input
10m
not necessary
Switching output
10m
not necessary
Table 7.6:
Line lengths and shielding