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Publication 1763-RM001C-EN-P - October 2009
Chapter
19
ASCII Instructions
This chapter contains general information about the ASCII instructions
and explains how they function in your control program. This chapter is
arranged into the following sections:
General Information
•
Instruction Types and Operation on page 310
•
•
String (ST) Data File on page 312
•
ASCII Instructions
The ASCII instructions are arranged so that the Write instructions precede
the Read instructions.
Instruction
Function
Page
ACL - ASCII Clear Buffer
Clear the receive and/or transmit buffers.
AIC - Integer to String
Convert an integer value to a string.
AWA - ASCII Write with
Append
Write a string with user-configured characters
appended.
AWT - ASCII Write
Write a string.
ABL - Test Buffer for Line
Determine the number of characters in the buffer, up
to and including the end-of-line character.
ACB - Number of Characters
in Buffer
Determine the total number of characters in the
buffer.
ACI - String to Integer
Convert a string to an integer value.
ACN - String Concatenate
Link two strings into one.
AEX - String Extract
Extract a portion of a string to create a new string.
AHL - ASCII Handshake Lines Set or reset modem handshake lines.
ARD - ASCII Read Characters Read characters from the input buffer and place them
into a string.
ARL - ASCII Read Line
Read one line of characters from the input buffer and
place them into a string.
ASC - String Search
Search a string.
ASR - ASCII String Compare
Compare two strings.
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