Campbell Scientific PWS100 Present Weather Sensor - Manual (Page 103)

Section 10. Troubleshooting
10.1 Introduction
If your PWS100 seems to be operating incorrectly, there are a number of
checks you can make to isolate the problem. These checks may enable you to
solve the problem or at least provide vital basic information for one of our
engineers should you need to contact Campbell Scientific.
10.2 Possible Problems
The following problems can be encountered. Following the steps laid out
should enable you to resolve these problems quickly and easily.
10.2.1 No response from PWS100
The following steps should be carried out to try to diagnose the problem:
Check the physical power connection. Attempt to connect again.
Check the communication cable. If the cables are secure but there is still no
response, remove and refit the cables. Attempt to connect again.
Check the baud rate settings on the DSP board. If the baud rate setting is
incorrect or mismatched from the terminal used to connect to the PWS adjust
settings accordingly. Attempt to connect again.
Ensure that the correct Pws_Id value is being used. Also ensure that if a
password is set then the correct password is being entered for the OPEN
command; e.g.,
OPEN Pws_Id Password ↵
Attempt to connect again.
If the previous steps have failed then a hardware reset can be carried out (see
Section 6.3.10, Load Factory Defaults). Attempt to connect again.
If the sensor still does not respond contact Campbell Scientific.
10.2.2 PWS100 responds but no data output given
Check the PWS100 settings by entering the command mode and using the
MSET function. Ensure that at least one message is set and that the interval is
appropriate.
If viewing the data using Hyperterminal or similar, ensure that the message
mode is set to ‘Store & Output’.
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