19.6.2 Instruction code
19.6.2.1 Summary
If you set the code corresponding to an item to be read/written from/to the Instruction code object through the
cyclic communication, the master can change or read parameter values and object values of a driver. The
following table lists the instruction code objects.
Set the reading instruction code (refer to (2) in this section) in Instruction code and turn on Instruction
code execution demand (Control DI 10, bit 1). Turning on Instruction code execution demand (Control DI
10, bit 1) sets the data corresponding to the set reading code in Reading data. Data is all hexadecimal. At
this time, Instruction code execution completion (Status DO 10, bit 1) also turns on. Read the reading
data to be set in Reading data while Instruction code execution demand (Control DI 10, bit 1) is on. The
data set in Reading data is held until Instruction code execution demand (Control DI 10, bit 1) turns on
with the next reading instruction code set.
If an instruction code out of the specifications is set in Instruction code, an error code (_ _ 1 _) is set in
Respond code. At this time, "00000000" is stored in Reading data. Refer to section 6.2.5 for details of the
respond code.
Turn off Instruction code execution demand (Control DI 10, bit 1) after the data reading is completed.
Until Instruction code execution completion turns on after Instruction code execution demand is turned
on, do not change the instruction code. Turn off Instruction code execution demand after the data reading
is completed.
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