Leuze
electronic
Installation
Leuze electronic
BCL 21/22
37
TNT 35/7-24V
Position of the connectors in the MA 2
Figure 6.6:
Connector unit MA 2
Wiring description
Terminals 1 to 6 as well as 23 and 24 in the MA 2 are assigned as described below. For
wiring through, the RS 485 interface at the MA 2 is implemented twice:
Table 6.3:
Terminal assignment MA 2
Terminal
Signal
1
RS 485 A
2
RS 485 A
3
RS 485 B
4
RS 485 B
5
GND 485
6
GND 485
23
RXD (service)
24
TXD (service)
ADR
SER
V
16-31
0-15
SER
V
ICE
MA 2
22
21
20
PE
PE
G
N
D_I
N
G
N
D_I
N
1
8
17
14 16
V
_I
N
V
_I
N
SA1
13
12
9
7
11
SA2
SE1
SE2
V
DD_SE
G
N
D_SE
G
N
D_SA
6
5
2 3 4
BCL 21
1
23 24
RXD
TXD
RS4
8
5A
RS4
8
5B
RS4
8
5A
RS4
8
5B
G
N
D4
8
5
G
N
D4
8
5
19
Attached label
with terminal
designation
Terminal strip
Connector for
BCL 21
Service inter-
face
Setting of the
device address
Brass clamp for
shield/PE
Switching
input
Switching
output
Voltage supply
10 … 30VDC
Содержание BCL 21
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