
COMMUNICATION
MULTI GAUGE CONTROLLER
. COMMUNICATION INTERFACES
Serial communication is possible in different standards. Depending on the protocol chosen, there
are different communication connections. Descriptions of the connections for individual protocols
are presented below.
The RS
/RS
, ETH and Pro inet ports of the MG
are not optically iso-
lated. Therefore, it is necessary to ensure the same potentials between the con-
troller(s) and other devices in this bus (common power supply chassis ground).
Otherwise problems with communication and even damage to the device may
occur.
. .
RS
/RS
CONNECTOR
Figure . : Female socket of RS
/RS
(Modbus RTU) interface
PIN NUMBER
FUNCTION
DESCRIPTION
RX
RS
- Data reception signal from the device
TX
RS
- Data transmission signal to the device
C (GND)
Common signal (ground)
A+
RS
- Data signal (positive)
B-
RS
- Data signal (negative)
, , ,
N/C
Not connected
Table . : Pins description of ”RS
/RS
” connector
Page
User manual rev.