Campbell Scientific CR1000 Measurement and Control System - Manual (Page 426)

Section 10. Troubleshooting
426
incremented by all events that leave gaps in data, including cycling power to the
CR1000.
10.3.1.5 ProgErrors
If not zero, investigate.
10.3.1.6 MemoryFree
A number less than 4 kB is too small and may lead to memory buffer-related
errors.
10.3.1.7 VarOutOfBounds
When programming with variable arrays, care must be taken to match the array
size to the demands of the program. For instance, if an operation attempts to write
to 16 elements in array ExArray(), but ExArray() was declared with only 15
elements (for example, Public ExArray(15)), the VarOutOfBound runtime error
counter is incremented in the Status table each time the absence of a sixteenth
element is encountered.
The CR1000 attempts to catch VarOutOfBound errors at compile time (not to be
confused with the CRBasic Editor pre-compiler, which does not). When a
VarOutOfBound error is detected at compile time, the CR1000 attempts to
document which variable is out of bounds at the end of the CompileResults
message in the Status table. For example, the CR1000 may detect that
ExArray() is not large enough and write Warning:Variable ExArray out of
bounds to the Status table.
The CR1000 does not catch all out-of-bounds errors.
10.3.1.8 WatchdogErrors
Watchdog errors indicate the CR1000 has crashed, which can be caused by power
or transient voltage problems, or an operating system or hardware problem.
Watchdog errors may cause telecommunications disruptions, which can make
diagnosis and remediation difficult. The external keyboard / display will often
work as a user interface when telecommunications fail. Information on CR1000
crashes may be found in three places.
• WatchdogErrors register in the Status table
(p. 527)
• Watchdog.txt file on the CPU: drive
(p. 333)
• Crash information may be posted at the end of the CompileResults register
in the Status
(p. 527)
table
10.3.1.8.1 Status Table WatchdogErrors
Non-zero indicates the CR1000 has crashed, which can be caused by power or
transient-voltage problems, or an operating-system or hardware problem. If
power or transient problems are ruled out, the CR1000 probably needs an
operating-system update or repair
(p. 3)
by Campbell Scientific.