1226
Text String Processing Instructions Section 3-33
Example In this example, +$(656) is used to connect the text strings ABCD and EFG
and output the result to D.
3-33-4 GET STRING LEFT: LEFT$(652)
Purpose Fetches a designated number of characters from the left (beginning) of a text
string.
Ladder Symbol
Variations
Applicable Program Areas
Operands S1: Text String
S2: Number of Characters (0000 to 0FFF hex or &0 to &4095)
Note 1. The data from S1 to S1 + the maximum 2,047 words and from D to D + the
maximum 2,047 words must be in the same area.
2. The data from S1 to S1 + the maximum 2,047 words and from D to D + the
maximum 2,047 words can overlap.
LEFT$(652)
S1
S2
D
S1: Text string first word
S2: Number of characters
D: First destination word
Variations Executed Each Cycle for ON Condition LEFT$(652)
Executed Once for Upward Differentiation @LEFT$(652)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
15 0
S1
to
Text string data: 4,095 characters max. + NUL
S1 + maximum 2,047 words
15 0
D
to
Text string data: 4,095 characters max. + NUL
D + maximum 2,047 words
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