Delta AS Series Programming Manual page 806

Record
Channel
Channel 1
Channel 2
Example:
Set Points = 2000, the trigger timing for the external input point is set to rising-edge triggered.
0
EN
External input trigger
CurNo
0
Cmplt
The feature of Fixed period + Trigger Start is similar to Fixed period. But the start timing of recording in Fixed
period mode would be delayed as a result of PLC scan time and module communication time, which is shown
in the following illustration. It is assumed that M0 is the device to control EN of ADLOG instruction. We can see
when M0 switches from OFF to ON, the module does not start recording immediately but with a slight delay.
0
Fixed period
M0
Recording starts
Fixed pe riod+Trigger Start
Externa l Input Trigger
Recording Starts
The signal source corresponding to the external input points
(Set the timing for external input trigger in HWCONFIG）
X0.0 rising-edge or falling-edge triggered
X0.1 rising-edge or falling-edge triggered
1
200 0 poin ts
1~1999 2000
PLC scan time+
communication delay
Cha p ter 6 App l ied Ins truc tio ns
2
200 0 poin ts
0~1999
Log points u nder fixe d period mode
Log points u nder fixe d period+trigger
start mode
t
2000
6_
t
6-527