Vaisala PTB330TS - Manual (Page 67)

Chapter 6 ______________________________ Serial Line Communication With PTB330 Barometer
VAISALA_______________________________________________________________________ 65
To take the user port into use for a serial connection:
- Connect to the service port first, and configure the user port
communication settings using the SMODE and SERI commands.
The new user port settings will be taken into use when the
transmitter is reset or powered up. For example:
SMODE STOP
SERI 9600 E 7 1
- Connect to the M12 connector using a serial cable with the proper
wiring. The wiring of the M12 connector is described in
Figure 26
on page 65 . Note that you also have to provide the operation power
for the barometer (10 ... 35 VDC) via the cable.
0503-026 Figure 26 Wiring of the M12 (8-Pin) Connector
Table 11 M12 Connector Pin Assignments
Pin/Terminal Wire RS-485 (EIA-485)
1 White A -
2 Brown Serial GND
3 (optional) Green Serial GND
4 Yellow -
5 Grey Supply -
6 Pink Supply +
7 Blue B -
8 Shield/Red Cable shield