RS 485 interface
47
AMS 301
i
Leuze electronic
9
RS 485 interface
9.1
General Information about the RS 485 interface
The AMS 301
i
features an integrated RS 485 interface. The RS 485 interface is activated
on delivery.
Notice!
To activate / deactivate the interface, parameter enabling must be activated (see chapter
8.3.2
).
The respectively activated interface appears in the display.
Figure 9.1:
Interfaces of the AMS 301
i
9.2
RS 485 electrical connection
RS 485 BUS IN / M12 pin assignment
RS 485 interface
RS 485 BUS IN (5-pin plug, B-coded)
Pin
Name
Remark
1
NC
Not used
2
RS 485 B
Data RS 485 B (-)
3
GND 485
Data reference potential
4
RS 485 A
Data RS 485 A (+)
5
FE
Functional earth
Thread
Shield
Functional earth (housing)
RS 485 A
RS 485 B
1
4
3
2
Schirm
(FE)
NC
GND 485
5
M 12 connector
(B-coded)