Meaning And Operation Of Flags - Mantracourt DCell User Manual

Meaning and Operation of Flags

The various bits in the FLAG value are as follows
Bit Value
0 1
1 2
2 4
3 8
4 16
5 32
6 64
7 128
8 256
9 512
10 1024
11 2048
12 4096
11 8192
14 16384
15 32768
NOTE:
The mnemonic names are used by convenience properties in Instrument Explorer, but are otherwise for reference
only –the flags can only be accessed via the FLAG parameter.
The various warning flags have the following meanings
TEMPUR and TEMPOR indicate temperature under-and over-range. The temperature minimum and maximum
settings are part of the temperature calibration, fixed at –50.0 and +90.0 ºC. Only active when optional
Temperature module fitted.
ECOMUR and ECOMOR are the basic electrical output range warnings. These are tripped when the electrical reading
goes outside fixed ±120% limits: This indicates a possible overload of the input circuitry, i.e. the input is too big to
measure.
The tested value, ECOM is an un-filtered precursor of ELEC
CRAWUR and CRAWOR are the cell output range warnings. These are tripped when the cell value goes outside
programmable limits CMIN or CMAX.
The tested value, CRAW is the cell output prior to linearity compensation.
SYSUR and SYSOR are the system output range warnings. These are triggered if the SYS value goes outside the SMIN
or SMAX limits.
LCINTEG indicates a missing or a problem with the Load cell. It is based on the common mode of the –SIG being
correct. NOTE This flag will also be set when the shunt calibration has been switched on.
WDRST indicates that the Watchdog has caused the device to re-boot. If this error continually occurs consult
factory.
BRWNOUT indicates that the device has re-booted due to the supply voltage falling below 4.1V, the minimum spec
for supply voltage is 5.6V and this must include any troughs in the AC element of this supply.
REBOOT is set whenever the DCell/DSC is powered up and is normal for a power up condition. This flag can be used
to warn of power loss to device.
35
Mantracourt Electronics Limited DCell & DSC MantraCAN User Manual
Description
(unused – reserved)
(unused – reserved)
Temperature under range ( TEMP)
Temperature over-range (TEMP
Strain gauge input under-range
Strain gauge input over-range
Cell under-range (CRAW)
Cell over-range (CRAW)
System under-range (SRAW)
System over-range (SRAW)
(unused – reserved)
Load Cell Integrity Error (LCINTEG)
Watchdog Reset
(unused – reserved)
Brown-Out Reset
Reboot warning (Normal Power up)
Name
Unused
Unused
TEMPUR
TEMPOR
ECOMUR
ECOMOR
CRAWUR
CRAWOR
SYSUR
SYSOR
Unused
LCINTEG
WDRST
Unused
BRWNOUT
REBOOT