wtw DIQ/S 182-MOD System Operating Manual page 113

System 182
Pin assignment of the
connector
ba75504e07 04/2012
Note
All cables with electrical characteristics according to EN 50170 are
suitable as a Modbus cable (e.g. all Profibus cables).
approx. 100 mm
M C S
OK
ESC
Fig. 7-2 DIQ/S 182-MOD with Phoenix connector
Pin Color* Name
1
2
3 Red B line
4 RTS
5 GND BUS
6 +5 V BUS
7
8 Green A line
9
* Wire colors when using a standard PROFIBUS cable.
Function
-
-
Positive RxD/TxD according to
RS 485 specification
Request To Send
Reference potential for data lines and
terminating resistors
Supply voltage for
terminating resistors
-
Negative RxD/TxD
according to RS 485 specification
-
Modbus connection
7 - 3