Section 10. Troubleshooting
power or transient problems are ruled out, the CR800 probably needs an
operating-system update or repair
(p. 5) by Campbell Scientific.
10.5.4.8.2 Watchdoginfo.txt File
A WatchdogInfo.txt file is created on the CPU: drive when the CR800
experiences a software reset (as opposed to a hardware reset that increment the
WatchdogError field in the Status table). Postings of WatchdogInfo.txt files
are rare. Please consult with a Campbell Scientific support engineer at any
occurrence.
Debugging beyond identifying the source of the watchdog is quite involved.
Please contact a Campbell Scientific support engineer for assistance. Key things
to look for include the following:
• Are multiple tasks waiting for the same resource? This is always caused
by a software bug.
• In newer operating systems, there is information about the memory
regions. If anything like ColorX: fail is seen, this means that the
memory is corrupted.
• The comms memory information can also be a clue for PakBus and TCP
triggered watchdogs. For example, if COM1 is the source of the
watchdog, knowing exactly what is connected to the port and at what
baud rate and frequency (how often) the port is communicating are
valuable pieces of information.
10.6 Troubleshooting — Operating Systems
Updating the CR800 operating system will sometimes fix a problem. Operating
systems are available, free of charge, at www.campbellsci.com/downloads.
Operating systems undergo extensive testing prior to release by a professional
team of product testers. However, the function of any new component to a data
acquisition system should be thoroughly examined and tested by the integrator
and end user.
10.7 Troubleshooting — Auto Self-Calibration Errors
Related Topics
• Auto Self-Calibration — Overview (p. 89)
• Auto Self-Calibration — Details (p. 337)
• Auto Self-Calibration — Errors (p. 475)
• Offset Voltage Compensation (p. 323)
• Factory Calibration (p. 86)
• Factory Calibration or Repair Procedure (p. 461)
Auto-calibration errors are rare. When they do occur, the cause is usually an
analog input that exceeds the input limits of the CR800.
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