597
Table Data Processing Instructions Section 3-16
Examples When CIO 0.00 is ON in the following example, SUM(184) adds 10 bytes
(specified in D300) of unsigned binary data beginning with the rightmost byte
of D100 and writes the result to D201 and D200.
3-16-13 FRAME CHECKSUM: FCS(180)
Purpose Calculates the FCS value for the specified range and outputs the result in
ASCII.
Ladder Symbol
Variations
C: D300
C+1: D301
D: D200
D+1: D201
R1
C 3
9 F
2 7
2 A
D C
2 A
2 A
2 0
2 0
5 5
0 3
0 0
7 8
0 0
0.00
D300
D100
D200
R1: D100
D101
D102
D103
D104
D105
Number of words/bytes
Always 0.
Starting byte
1: Rightmost byte
Units
1: Bytes
Data type
0: Binary
Data type
0: Unsigned binary data
10 bytes
Table length
The shaded bytes are added.
FCS(180)
C
R1
D
C: First control word
R1: First word in range
D: First destination word
Variations Executed Each Cycle for ON Condition FCS(180)
Executed Once for Upward Differentiation @FCS(180)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
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