Vaisala WXT520 Manuel d'utilisateur

Application noteVaisala WXT520 and Nokeval 7470 V3.0-Juha Hämäläinen / Nokeval Oy 16.10.2013

CONNECTING 7470 FOR RS-232/485 CONFIGURATIONUsing RS-232 or RS-485 for configuring the 7470 is necessary only if a programming cable is not available.

CONFIGURING THE 7470ConnectingOpen a MekuWin connection to 7470, using the serial number or the serial port of the programming cable, SCL protocol, 96

when it is 50, set Range=4-20mA, Lo=0, and Hi=50. The 7470 does not know the measurement unit – it is defined in the Vaisala configuration.Finally cli

WIRINGRS-485Separate serial and power wiringCombined wiringSince Vaisala does not have an isolation between serial and power ports, one wire can serve

Wiring with the Vaisala M12 cableWXT5201245674701112+-PowerM12GreyBlueRed (or clear)Brown3

GeneralNokeval 7470 analog output unit can be programmed to interpret messages from Vaisala WMT and WXT weather sensors. This requires configuring bot

Vaisalaservice cableavailableNo YesPOL cableavailableNo YesWant to useSicalaNo YesConfigure Vaisalaw ith terminalsoftw areConfigure Vaisalaw ith Si

CONFIGURING VAISALA WITH VAISALA CONFIGURATION TOOLConnectingLaunch the Vaisala configuration tool. Select File/Connection Setup. Select your serial p

Message settingsSelect the parameters required. The Composite message section is the only that matters. Do not select more than 11 parameters, or the

Profile managerVaisala Configuration Tool has a profile manager that allows viewing all the settings at once and saving them to a file. The profile ma

CONFIGURING VAISALA WITH A TERMINAL SOFTWARESetting up the terminal softwareOpen HyperTerminal (or any other terminal software) and create a session t

And switch the station off for 30 s. Change the HyperTerminal to the new baud rate (Call/Disconnect, File/Properties/Configure and Call/Call again).Co

CONFIGURING VAISALA WITH SICALAThe 7470 allows sending commands to the RS-232/485 bus from the POL (programming) port. Nokeval has planned to make a P