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9. Exclusive Commands
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(1) Control signals (Rn), (Dn)
F
E
D
C
B
A
9
8
7
6
5 4 3 2 1 0
Warning output
Error during chopping
(not used)
Size over
No. of axes illegal
Large section No. error
Write protect
Error occurrence
No option
0: Read designation
1: Write designation
0: Direct input
1: Addition input
0: Decimal point invalid
1: Decimal point value
Last 4 digits of data during
Variable read/write correspond
to decimal point digits.
Set by PLC during
execution of
DDB command
Set by CNC
When DDB command
is completed
Warning output
BIT4 = 1: Variable data empty
0: Variable data not empty
BIT5 = 1: Variable overflow
0: Not Variable overflow
(2) Large section number (Rn+1), (Dn+1)
Specify the large section number of the data to be read/written in binary form.
(3) Sub-section number (Rn+2, Rn+3), (Dn+2, Dn+3)
(LOW) (HIGH) (LOW) (HIGH)
Specify the sub-section number of the data to be read/written in binary form.
(4) Data size (Rn+4), (Dn+4)
Specify the size of the data to be read/written in binary form.
1: One byte
2: Two bytes
4: Four bytes
If any value other than 1, 2, or 4 is specified, the invalid data size alarm will occur.
(5) Read/write specifications axis (Rn+5), (Dn+5)
Specify the axis to read or write data for each axis classified by major classification numbers.
FEDCBA9876543210
First axis
Second axis
Third axis
Forth axis
If axis specification is not made or exceeds the maximum control axis when axis data is read or
written, the invalid axis number alarm will occur.