Vaisala WMT52 - Manual (Page 113)

Chapter 10 __________________________________________________________ Troubleshooting
VAISALA______________________________________________________________________ 111
Self-Diagnostics
Error Messaging/Text Messages
WMT52 sends a text message when certain type of errors occur. This
function works in all communication modes except in the SDI-12 mode.
You may disable error messaging by using the supervisor message aSU,
S=N, see
Changing the Settings (aSU) on page 103 .
Examples:
0R1!0TX,Unable to measure error (request of wind data
while all the wind parameters were disabled from the wind message)
1XU!0TX,Sync/address error (wrong device address. Ask
the correct address with ? or ?! command.
0XP!0TX,Unknown cmd error
0xUabc!0TX,Use chksum CCb (wrong checksum applied to
the 0xU command)
Data messages are not in
expected format. The communication protocol
may not be the one you want. Check the communication
protocol of the device by using
the Vaisala Configuration Tool or
any terminal with command
aXU,M! (SDI-12)
aXU,M (ASCII/NMEA)
and change it if needed. See
Chapter 6, Connection Options,
on page 51
.
Some parameters are missing
from the data messages. The formatting of the data
messages is not what you
expect. Format the data messages of the
concern by using the Vaisala
Configuration Tool or any
terminal program. See
Chapter
8, Sensor and Data Message
Settings, on page 95
.
An error message as a response
to a command. See section Error Messaging/
Text Messages on page 111 .
See section Error Messaging/
Text Messages on page 111 .
WMT52 keeps sending the
message "TX Sync/address
error". The polling address and WMT52
address do not match.
The WMT52 is on an RS-485
bus with other polled devices
and Error Messages are
enabled. Set correct address either for the
WMT52 or to the polling request.
Disable the Error Messages with
the command aSU,S=N .
Table 10 Communication Problems (Continued)
Problem Interpretation Action