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set to
5
then
678
will be displayed from the following example string:
<
STX
>
12345678
<
CR
>
i.e. the first 5
characters of the string will be ignored. Note that in
UAL
mode the values displayed will be right justified and in
ASCI
mode the display is left justified e.g. for this example using a 4 digit display
<
BLANK
>
678
will be seen
in
UAL
mode whereas in
ASCI
mode the value will displayed as
678
<
BLANK
>
for a 4 digit display.
The
ALPH
function can also affect the character skipping used by the
dLAY
function. See the the
N.Chr
function, section
for further description and example.
5.50
Number of serial input characters to skip back
Section:
IN 1
Display:
bAct
Range:
0
to
120
Default Value:
0
Default Access Level
CAL
Function number
4d12
Used only when
function =
UAL
or
ASCI
. Number of characters back from the terminating character to skip,
default is
0
(off). The display will wait for the terminating character and will then skip back over the last X
characters in front to the terminating character with the X value being the value set in this function. For example if
the terminating character
t.chr
is set to
13
(i.e. carriage return
<
CR
>
) and
bAct
is set to
2
then
1234
will
be displayed from the example string
<
STX
>
123456
<
CR
>
. For the same input string the display would show
123456
if the
bAct
function was set to
0
and the display had enough digits to show this value. If the number
of display digits is too few the overrange message
-or-
will be seen in
UAL
mode or the most significant values
which will fit on the display will be displayed in
ASCI
mode. Both
ASCI
an
UAL
mode values will be right
justified when the
bAct
function is used and the display value is less than the number of digits on the display.
5.51
Number of serial input characters to skip from
SCH
or
t.chr
Section:
IN 1
Display:
N.Chr
Range:
-120
to
120
Default Value:
0
Default Access Level
CAL
Function number
4d13
Used only when function =
UAL
or
ASCI
. This function is used to select the required display value from a string
using either the start character or end character as a reference. The
N.Chr
function can be used with the
dLAY
or
bAct
function to further aid in selecting the required value, see example below.
The
ALPH
function setting can also affect what is displayed, if this function is set to
OFF
then alpha characters
(A, B, C etc.) will not be counted i.e. they can be ignored as part of the count forward or back. If this function is
set to
ON
then both numeric and alpha characters will be counted. If this function is set to
AII
then all characters
including control characters (e.g.
<
STX
>
,
<
CR
>
etc.) will be counted.
If the
N.Chr
value is positive then this function sets the number of characters to be extracted from the data string
immediately following the
SCH1
(or
SCH2
,
SCH3
or
SCH4
if used) character. If no
SCH
character is selected
then the display will count forward from the first character in the string.
If the
N.Chr
value is negative then this function sets the number of characters to be extracted from the data string
immediately following the
t.chr
character.
If this function is not required it should be left at the default setting of
0
which will disable the function.
Example 1:
For string
<
STX
>
12345678
<
CR
>
the value 1234 will be displayed if the
N.Chr
function is set to 4 and the
46 of
LD5RSMAN-2.0-0