7. APPLICATION INSTRUCTIONS
7 − 67
MELSEC-A
DFRO
Program which reads the data of two words from the address 10 of buffer memory of
A68AD, loaded in I/O numbers 040 to 05F to D0 and 1.
POINT
If a FROM instruction is executed for a special function module frequently in a
short scan time, the objective special function module may fail to process
correctly.
To execute a FROM instruction for a special function module, set the execution
intervals meeting the processing and conversion time of that module using the
timer and the constant scan function of it.
X000
0
HK K
DFRO 0004 10 D0 1
• Coding
0 LD X000
1 DFRO H0004 K10 D0 K1
10 END
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