For Device Addresses, only the LS Area and USR
Area (Extended User Area) can be used.
The temporary addresses of D-Scripts and Global
D-Scripts are managed independently from the temporary address of
Extended Scripts. Therefore, changes made to the temporary
addresses of D-Scripts and Global D-Scripts are not reflected in
the temporary address of Extended Scripts.
You can call user-defined functions created with
D-Script/Global D-Script, but if you access a device address
outside the range of the internal device in the function, it may
not operate normally. Also, when transferred (during the creation
of data for the display unit), user-defined functions are created
independently for D-Scripts, Global D-Scripts, and Extended
Scripts.
When calling a function from a function, the
maximum number of nested levels is 9.
Up to 254 functions can be called. (The number of
functions available with "Call" is 254.)
Extended Script does not affect the tag
count.
Functions (for example string operations)
supported only by Extended Script, do not operate when called with
D-Script or Global D-Script.
The available data format is Bin. BCD data format
is disabled.
The size of the Send buffer is 2048 bytes, while
the Receive buffer is 8192 bytes. The CTS line is turned OFF after
at least 80% of the Receive buffer is full of received data.
D-Script/Global D-Script and Extended Script
cannot be selected simultaneously. Note the combinations listed in
the table below.
Extended SIO Setting
D-Script/ Global D-Script
Extended SIO function for Extended
Script
Extended SIO function for Extended
Script
D-Script/Global D-Script
O: Operation possible
X: Will not operate
Extended Script
X: Will not operate
O: Operation possible
Notational conventions for the character string
setting
When using character strings with "_strset ( )" and other
functions, enclose the character string in double quotation marks
("). to display double quotation marks in the character strings,
append the "\" symbol and express as [\"]. As there is no way to
represent "\" using a single symbol, use a character code
expression such as strset(databuf0,92).
For example,
"ABC\"DEF"→ABC"DEF
"ABC\DEF"→ABC\DEF
"ABC\\"DEF"→ABC\"DEF
"ABC\\DEF"→ABC\\DEF
For functions where a negative number is entered
for an argument that does not accept negative numbers*1, the entered number operates
as unsigned*2.
*1 For example, "the number of bytes" of
the _CF_read () argument cannot accept negative numbers because it
is the size of data to be read.
*2 For example, [-1] is handled as
65535 for 16 Bit, and 4294967295 for 32 Bit.
The size of the dedicated Extended SIO buffers
databuf0, databuf1, databuf2, and databuf3 are all 1 KB.
There is no differenciation between upper and
lower case for text in the parameters.
You cannot use the following symbols.
" * : < > ? [ ] | ~ , = +
In an Extended Script, when using a device
address where you define the access type, the instructions and
operators you can use are as follows.
Cautions When Reading the Same Device Address
in the Same Extended Script
Even when the same device address is used in the same extended
script, values read from the device address may differ depending on
the processing timing of extended scripts..
To avoid this situation, please program scripts to temporarily
store data in internal devices or temporary addresses.
Built-in functions will not be affected by
changes in argument values during script execution. However, the
following functions may be affected.
Please program scripts not to change argument values while
executing scripts on these functions.
