Omega Engineering OMB-CHARTSCAN 1400 User Manual page 156

API Commands
TYPE
EXECUTION
SYNTAX
DESCRIPTION
The Set Data Format (
unit, and requires two arguments. The first argument
format
When the unit is inputting or outputting data, it first references the current reading format. If
(Engineering Units), it will then reference the current settings of the engineering units and then perform the
necessary conversion.
Data Input Formats
Data Type
Temperature
Volts
Time/Date
Timebase
Legend
The Set Data Format (
only readings input from the controller come in the form of command parameters and there are only two
commands which take readings as parameters: the Configure Channels (
commands. These are the only command parameters over which the
With both the
command may also determine the high and low setpoint format in the
The reading parameters for the
specified by the
always be interpreted as Engineering Units (as currently defined by the Engineering Units argument of the
command) except when the Counts format is specified. When the Counts format is specified, these parameters
are interpreted as Counts. For additional information on the different format types, see the Data Format section
in Appendix C.
If readings are interpreted as Counts or Binary format then the engineering unit parameter of the
ignored.
(continued)
A-30
F
System
Deferred
Fengr,
format
F?
) command configures the input and output data format for data transmissions with the
F
is the reading format.
(see Note 1)
0
Engineering Units
xxxx.xx
0
1 xxxx.xx
2 xxxx.xx
3 xxxx.xx
4 +xx.xxxxxxxxx
Absolute
hh:mm:ss.mil,MM/DD/YY
Relative
+hh:mm:ss.mil,DDDDDDDD
hh:mm:ss.mil
= ASCII digit
x
= hour
h
= minute
m
= second
s
= see Note 2
mil
Note 1: Binary Low Byte/High Byte (
as engineering units.
Note 2: mil is milliseconds for ASCII, but microseconds for binary (2-hexidecimal) format.
) command determines the format of readings input from the controller. However, the
F
and command the
C L
and
C
command, these parameters will be interpreted as Engineering Units. These parameters will
F
- Set Data Format
Configure the input and output formats.
converts the raw data to the engineering units with which you prefer
engr
to work. Valid options are:
Volts.
°C is the default engineering unit.
places the readings in a format with which you prefer to work.
format
Valid options are: - Engineering Units (default),
0
Byte/High Byte), - Binary (High Byte/Low Byte), and
2
(ASCII).
Query the data format.
is the engineering units, the second argument
engr
3
Counts
±xxxxx
°C
°F
°R
°K
±xxxxx
Interpreted as
Engineering Units
Interpreted as
Engineering Units
MM
DD
YY
DDDDDDDD
) and Binary High Byte/Low Byte (
1
command may determine the format of the hysteresis parameter. The
F
commands cannot be issued in binary format. If binary format is
L
- °C, - °F, - °R, - °K, and
0 1 2 3
- Binary (Low
1
3
format
= month
= day
= year
= day
) are interpreted
2
) and the Set Trigger Level (
C
command has control.
F
command.
C
F
ChartScan User's Manual
Appendix A
-
4
- Counts
is
0
)
L
F
F
command is