API CommandsAppendix A

 

 

R# - Read Last Readings

 

 

 

 

 

 

TYPE

System

 

 

EXECUTION

Immediate

 

 

SYNTAX

R#chans

Queries the last readings from the HLL Registers for specified channels.

 

 

 

chans may be in two forms:

 

 

 

chan (for a single channel where 1 < chan < max), or

 

 

 

first-last(for a range of channels where 1 < first < last < max),

 

 

 

where max = 128 for ChartScan/1400.

 

DESCRIPTION

 

 

 

The Read Last Readings (R#) command will return a subset of the Query Last (U13) command. It allows the 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 (U13) command, whereby each reading conforms to the reading output format specified by the Set Data Format (F) command. In addition, each channel is terminated by the HLL terminator hll, as specified with the Set Query Terminator (Q) command.

Note: If the specified channel, or a range of channels, is not currently defined in the scan group as configured by the Channel Configuration (C) command, a conflict error will be flagged.

EXAMPLES

PRINT#1,"OUTPUT07;C1-16,1X"

‘ Configure channels 1 - 16 for T/C Type J

PRINT#1,"OUTPUT07;F1,0X"

‘ Set format for engineering units degrees C

PRINT#1,"OUTPUT07;R#16X"

‘ Get the last reading for channel 16

PRINT#1,"ENTER07"

‘ Screen shows +0103.20 (channel 16 is 103.2 °C)

LINE INPUT #2, R$

 

 

PRINT R

 

 

PRINT#1,"OUTPUT07;R#1-4X"

‘ Get the Last readings for channels 1 - 4

PRINT#1,"ENTER07"

Screen shows

 

 

-0003.70(channel 1 is -3.7 °C)

 

+0005.60

(channel 2 is 5.6 °C)

 

+0010.20

(channel 3 is 10.2 °C)

 

+0024.40

(channel 4 is 24.4 °C)

LINE INPUT #2, R$

PRINT R#

A-52

ChartScan User’s Manual

Page 178
Image 178
Omega Vehicle Security 1400 # Read Last Readings, PRINT#1,OUTPUT07F1,0X, PRINT#1,OUTPUT07R#16X, Line Input #2, R$ Print R

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