YSI IQ SensorNet MIQ/A-PR Module - Manual (Page 11)

MIQ/(A-)PR Interface for the PROFIBUS
11 ba76020e01 01/2012
3.2.1 Terminal connections
Fig. 3-3 Terminal connections
To check the wiring, the connection designations of a 9-pole D-SUB
plug connection are given here:
* Wire colors when using a standard PROFIBUS cable.
Pin Name Function
1 +5 V BUS Insulated +5 V from RS 485
2 GND BUS Insulated GND from RS 485
3 A line Negative RxD/TxD according to RS 485
specification
4 B line Positive RxD/TxD according to RS 485
specification
5 Shield BUS cable screen, connected with PE
6 RTS Request To Send
Pin Color* Name Function
1 -
2 -
3 Red B line Positive RxD/TxD
according to RS 485 specification
4 RTS Request To Send
5 GND BUS Reference potential for data wires and
terminating resistors
6 +5 V BUS Supply voltage for terminating resistors
7 -
8 Green A line Negative RxD/TxD
according to RS 485 specification
9 -
1
6
2 3
4
5