Unit Setting And Conversion Processing Time - Panasonic FP7 Series User Manual

4.2 Configuration Settings

4.2.2 Unit Setting and Conversion Processing Time

Conversion time varies with the configuration setting conditions.
■
Unit's conversion process cycle time
● The unit's conversion time is determined by the number of channels that the conversion
process is executed.
● For the thermocouple multi-analog input unit, a conversion time per channel can be selected.
Normal mode (When conversion time is 25 ms/ch)
No. of executed
(Note 1)
channels
1
2
3
4
5
6
7
8
(Note 1) Channels to execute the conversion processing are set in the unit memories (UM00080/UM00090/
UM000A0/UM000B0/UM000C0/UM000D0/UM000E0/UM000F0).
(Note 2) Conversion time can be set only when selecting the thermocouple multi-analog input unit. It is set in
the unit memory (UM00071).
■
Normal mode and High-speed mode
● In the normal mode (conversion time: 25 ms/c), a process is available to reduce the effects of
commercial frequency (50Hz/60Hz) noises by a digial filter. In the high-speed mode
(conversion time: 5 ms/ch), this process is not available.
● When there are effects of commercial frequency (50Hz/60Hz) noises, it is recommended to
use the normal mode.
■
Conversion processing execution/non-execution setting and conversion
processing time
Select the execution or non-execution of the conversion processing of analog input on a
channel-by-channel basis. This can save the conversion time for channels that do not execute
conversion processing.
Example) Conversion time for two channels (with CH2 to CH7 excluded)
Conversion is executed in the order of ch0→ch1→ch0→ch1→ch0→ch1→ch0→ch1..., and the
conversion time for CH2 to CH7, which are excluded, is saved.
4-8
Conversion time +
Processing time
25 ms +25 ms
50 ms +25 ms
75 ms +25 ms
100 ms +25 ms
125 ms +25 ms
150 ms +25 ms
175 ms +25 ms
200 ms +25 ms
High-speed mode (When conversion time is 5
(Note 2)
ms/ch)
No. of executed
Conversion time +
(Note 1) Processing time
channels
1 5 ms +5 ms
2 10 ms +5 ms
3 15 ms +5 ms
4 20 ms +5 ms
5 25 ms +5 ms
6 30 ms +5 ms
7 35 ms +5 ms
8 40 ms +5 ms
WUME-FP7TCRTD-04