600
Table Data Processing Instructions Section 3-16
Examples When CIO 0.00 is ON in the following example, FCS(180) calculates the FCS
value for the 10 bytes (specified in D300) of data beginning with the rightmost
byte of D100 and writes the result to D200.
3-16-14 STACK SIZE READ: SNUM(638)
Purpose Counts the amount of stack data (number of words) in the specified stack.
Ladder Symbol
Variations
Applicable Program Areas
0 2
0 4
0 6
0 8
0 0
3 0
0 1
0 3
0 5
0 7
0 0
3 8
R1
0.00
D300
D100
D200
C: D300
C+1: D301
R1: D100
D101
D102
D103
D104
D105
D: D200
Always 0.
Units
1: Bytes
Starting byte (Effective only if bit 13 is 1.)
1: Rightmost byte
Always 0.
The FCS value for the
shaded bytes is calculated
and converted to ASCII.
Table length
10 bytes
SNUM(638)
TB
D
TB: First stack address
D: Destination word
Variations Executed Each Cycle for ON Condition SNUM(638)
Executed Once for Upward Differentiation @SNUM(638)
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
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