Read Last Readings - Omega Engineering OMB-CHARTSCAN 1400 User Manual

API Commands
TYPE
EXECUTION
SYNTAX
DESCRIPTION
The Read Last Readings (
specifying of specific channels within the current channel configuration. This command is useful for querying
specific channels without having unwanted channels returned. The response to this command takes the same
form as the Query Last (
by the Set Data Format (
specified with the Set Query Terminator (
Note: If the specified channel, or a range of channels, is not currently defined in the scan group as configured by
EXAMPLES
PRINT#1,"OUTPUT07;C1-16,1X"
PRINT#1,"OUTPUT07;F1,0X"
PRINT#1,"OUTPUT07;R#16X"
PRINT#1,"ENTER07"
LINE INPUT #2, R$
PRINT R
PRINT#1,"OUTPUT07;R#1-4X"
PRINT#1,"ENTER07"
LINE INPUT #2, R$
PRINT R#
A-52
R#
System
Immediate
Queries the last readings from the HLL Registers for specified channels.
R#chans
chans
chan
first-last
) command will return a subset of the Query Last (
R#
) command, whereby each reading conforms to the reading output format specified
U13
) command. In addition, each channel is terminated by the HLL terminator
F
the Channel Configuration (
C

- Read Last Readings

may be in two forms:
(for a single channel where
(for a range of channels where
where max = 128 for ChartScan/1400.
) command.
Q
) command, a conflict error will be flagged.
' Configure channels 1 - 16 for T/C Type J
' Set format for engineering units degrees C
' Get the last reading for channel 16
' Screen shows
' Get the Last readings for channels 1 - 4
'
Screen shows
-0003.70
+0005.60
+0010.20
+0024.40
< < ), or
1 chan max
< <
1 first
) command. It allows the
U13
(channel 16 is 103.2 °C)
+0103.20
(channel 1 is -3.7 °C)
(channel 2 is 5.6 °C)
(channel 3 is 10.2 °C)
(channel 4 is 24.4 °C)
ChartScan User's Manual
Appendix A
< ),
last max
, as
hll