RS 422/RS 232 interface
Leuze electronic GmbH + Co. KG
AMS 300
i
51
TNT
35/7-2
4V
9
RS 422/RS 232 interface
9.1
General information on the RS 422/RS 232 interface
The AMS 300
i
features an integrated RS 422 interface and an RS 232 interface. On delivery,
the RS 422 interface is active; alternatively, the RS 232 can be activated. The currently active
interface is indicated in the display.
Note!
To activate/deactivate the respective interface, parameter enable must be activated
(see "Parameter enable" on page 49.).
Note!
Both interfaces are contacted via the M12 connection for BUS IN. Either the RS 422 or the
RS 232 can be activated.
Figure 9.1: Interfaces of the AMS 300
i
9.2
RS 422 – Electrical connection
RS 422/RS 232 interface
RS 422 BUS IN (5-pin plug, B-coded)
Pin
Name
Comment
1
Rx+
RS 422 receiving line
2
Tx-
RS 422 transmission line
3
GND ISO RS 422 reference potential
4
Tx+
RS 422 transmission line
5
Rx-
RS 422 receiving line
Thread
FE
Functional earth (housing)
1
4
3
2
5
BUS IN RS 422
Tx-
Tx+
Rx+
GND ISO
Rx-
M12 connector
(B-coded)
