Campbell CR1000 User Manual

Appendix B. Status, Settings, and Data Table Information (Status/Settings/DTI)
MaxSystemProcTime
Keyboard: Status Table ≈ line 48
CRBasic: variable = status.keyword
Maximum time required to process the auto
(background) calibration, which runs in a hidden
slow-sequence type scan. Displays 0 until an auto-
calibration runs. See LastSystemScan
(p. 619),
SkippedSystemScan
(p. 628), SystemProcTime (p.
629),
and section CR1000 Auto Calibration —
Overview
(p. 92).
read-only
LONG
μs
0 until scan
0 = reset
MeasureOps
Keyboard: Status Table ≈ line 38
CRBasic: variable = status.keyword
Reports the number of task-sequencer opcodes
required to do all measurements. Calculated at
compile time. Includes opcodes for calibration
(compile time), auto (background) calibration
(system), and slow sequences. Assumes all
measurement instructions run each scan.
read only
LONG
no units
n/a n/a
MeasureTime
Keyboard: Status Table ≈ line 39
CRBasic: variable = status.keyword
Reports the time needed to make measurements in
the current scan. Calculated at compile time.
Includes integration and settling time. In pipeline
mode, processing occurs concurrent with this time so
the sum of MeasureTime and ProcessTime is not
equal to the required scan time. Assumes all
measurement instructions will run each scan. See
ProcessTime and MaxProcTime.
read only
LONG
μs
n/a n/a
MemoryFree
Station Status: Memory Free
Keyboard: Status Table ≈ line 32
CRBasic: variable = status.keyword
Unallocated SRAM memory on the CPU. All free
memory may not be available for data tables. As
memory is allocated and freed, holes of unallocated
memory, which are unusable for final-data memory,
may be created.
read only
LONG
bytes
3794224
≥ 4096
MemorySize
Station Status: Memory
Keyboard: Status Table ≈ line 31
CRBasic: variable = status.keyword
Total SRAM in the CR1000. See the table CR1000
Memory Allocation
(p. 371).
read only
LONG
bytes
4194304 4194304
Messages
Keyboard: Status Table ≈ line 54
CRBasic: variable = status.keyword
Contains a string of manually entered messages.
read/write
STRING
n/a n/a
621

Campbell CR1000 Specifications

General

Power Requirements	9.6 to 16 VDC
Data Logger Operating System	CRBasic
Memory	4 MB
Analog Inputs	16 single-ended or 8 differential
Analog Input Resolution	13 bits
Analog Input Range	+/-2.5V
Digital I/O	8
Pulse Counters	2
Communication Ports	RS-232
Operating Temperature	-25°C to +50°C
Pulse Channels	4