Analog Input Time Stamp
This indicates the DC time at which AD conversion starts in the first sampling of analog input data dur-
ing each task period. The timing of starting the AD conversion is the same for all the channels.
Data name
Data type
Default val-
ue
I/O port name
Unit
Index num-
ber (hex)
Subindex
number (hex)
Analog Input Time
Stamp
ULINT
0
Analog Input Time
Stamp
ns
6000
01
The bit configuration of the Analog Input Time Stamp (ULINT) is given in the following table.
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0
Analog Input Time Stamp, 1st byte
+1
Analog Input Time Stamp, 2nd byte
+2
Analog Input Time Stamp, 3rd byte
+3
Analog Input Time Stamp, 4th byte
+4
Analog Input Time Stamp, 5th byte
+5
Analog Input Time Stamp, 6th byte
+6
Analog Input Time Stamp, 7th byte
+7
Analog Input Time Stamp, 8th byte
The following figure shows the timing of obtaining data.
1
2
3
4
1
T0
T1
T2
2
3
4
5
1
2
3
4
5
1
2
3
4
5
2
3
4
1
2
3
4
1
High-speed
Analog Input
Unit
Ch1: Number of
Samplings set to 4
Ch2: Number of
Samplings set to 5
Analog Input Time
Stamp
Records the DC time at which AD conversion starts in the first sampling of
analog input data during each task period.
Task period of assigned
periodic task
Ch
£
Status
This is aggregated Status data that the High-speed Analog Input Units detect, such as I/O Disconnec-
tion Detected and Under Range.
Data name Data type Default value I/O port name Unit Index number (hex)
Subindex number
(hex)
Ch1 Status WORD
0000 hex
Ch1 Status
---
6001
01
Ch2 Status WORD
0000 hex
Ch2 Status
---
6002
01
7 I/O Data and List of Settings
7 - 7
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)
7-1 Specifications of I/O Data
7
7-1-2
Data Details
