Delta AS Series Programming Manual page 1267

AS Ser ies Pro gra mm in g M anu al
Functions
number of pulses after
returning to the zero
DOG point is B point
NL point is B point
8. The execution sequence is based on the value of the low 16-bit code in the table above, and described below.
The direction of DOG signal is determined by the value of bit 5.
 The NL negative limit and DOG signal are determined by the value of bit 5 and bit 4.
 Mode 0 or mode 1 for the zero point return, selected according to the value of bit 3.
 The operation of the zero point return is performed according to the values of bit 1 and bit 0.
_6
9. The Completion flag is set to ON after the instruction finishes performing the specified function. For example, for
function code 2, the PLC sets the Completion flag to ON only when the number of specified pulses completes
outputting.
10. After the DZRN2 instruction is executed, an interrupt service program is not executed till the DZRN2 instruction is
disabled, if the specified input point for the zero point is the same as that for the external input interrupt in the
program.
11. The instruction cannot be used in the ST programming language, interrupt tasks or function block which is called
only once.
6 - 9 8 8
High
16-bit
pulses for
motion
point
Code
Low 16-
bit
(bit3=ON) that for low 16-bit code 1.
After returning to the zero point, the motion
continues in accordance with the number of
specified pulses. When the value of the high 16-bit
code is a positive number, the motion is in the
positive direction. A negative number indicates
that the motion is in the negative direction.
When in the low 16-bit code, bit 4 is ON, it means
+16
the zero point is ON as the DOG point changes
from ON to OFF and the zero point is left as the
(bit4=ON)
DOG point changes from OFF to ON.
When in the low 16-bit code, bit 5 is ON, it means
+32
the zero point is ON as the NL point changes from
ON to OFF and the zero point is left as the DOG
(bit5=ON)
point changes from OFF to ON.
Description