14
Connector Unit MA 30 / MA 31
Leuze electronic
Connection
Leuze
electronic
3
Connection
3.1
Connecting the host interface
Connection terminals: 1 … 6
Attention!
The
pin assignment
of the connection terminals is dependent on which
interface module is plugged in.
Interface module pin
assignment
Leuze offers four modules which establish an electrical connection to the
serial interfaces RS 232, RS 422, TTY or RS 485. The terminal designations
are printed on the module.
The type designation of the MA 30/31 indicates which interface module is
installed:
MA 30/31 interface
types
Table 3.1:
MA 30/31 interface types
3.1.1
RS 485 interface:
RS 485
Figure 3.1: Connection of the MA 30/31 to an RS 485 host computer
Type designation
Interface module of the host
interface
Part No.
MA 30 100
RS 485
500 28089
MA 31 100
500 30835
MA 30 110
RS 232
500 28090
MA 31 110
500 30836
MA 30 120
TTY
500 28091
MA 31 120
500 30837
MA 30 130
RS 422
500 28092
MA 31 130
500 30838
R
S4
8
5
485A 1
485A 2
485B 3
485B 4
G N D 5
G N D 6
12
3
4
5
6
4 8 5 A
485B
G N D
485A
4 8 5 B
G N D
Host
Shield
Host interface module
up to 1200m