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742
Table Data Processing Instructions
Section 3-17
Note
FCS(180) can be processed in the background. Refer to the
SYSMAC CS/CJ/
NSJ Series PLC Programming Manual
(W394) for details.
Flags
Examples
When CIO 000000 is ON in the following example, FCS(180) calculates the
FCS value for the 10 bytes of data beginning with the rightmost byte of
D00100 and writes the result to D00200.
R1
Calculation
C (Table length)
ASCII conversion
FCS value
Name
Label
Operation
Error Flag
ER
ON if the content of C is not within the specified range of
0001 through FFFF.
ON if the Communications Port Enabled Flag for the com-
munications port number specified as the
Com Port num-
ber
for
Background Execution
is OFF when background
processing is specified.
OFF in all other cases.
C: D00300
C+1: D00301
R1:
D: D00200
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
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
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...