Averaging Time - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U
FX -4AD-ADP (4-channel Analog Input)
3U
4.5

Averaging Time

If the averaging time is set for the 4AD-ADP, the average data will be stored as the input data. The averaging
time can be set for each channel.
Set the averaging time in the following special data registers:
• FX Series PLC
3S
Special data register
D8284
D8285
D8286
D8287
• FX /FX
3G 3GC
Special data register
1st
D8284
D8285
D8286
D8287
• FX /FX
3U 3UC
1st
D8264
D8265
D8266
D8267
1. Cautions regarding averaging time setting
• If the averaging time is set to "1", the immediate data is stored to the special data register.
• If the averaging time is set in the range from 2 to 4095, the average value will be calculated to conform to
the set averaging time, and the average value obtained will be stored in the special data register.
• After turning the PLC power on, the current data is stored to special data registers until the number of data
items reaches the set averaging time. After this, the average data will be stored.
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, an error
signal will be output.
• If the averaging time is set to "0" or smaller, the PLC will perform as if the averaging time is set to "1".
If the averaging time is set to "4096" or larger, the PLC will perform as if the averaging time is set to "4096".
2. Program Example (For FX
M8000
Normally
ON
C-22
PLC User's Manual - Analog Control Edition
3UC
Averaging time for channel-1 data
Averaging time for channel-2 data
Averaging time for channel-3 data
Averaging time for channel-4 data
Series PLC
2nd
D8294 Averaging time for channel-1 data
D8295 Averaging time for channel-2 data
D8296 Averaging time for channel-3 data
D8297 Averaging time for channel-4 data
Series PLC
Special data register
2nd 3rd
D8274 D8284
D8275 D8285
D8276 D8286
D8277 D8287
→ For a detailed description of the error status, refer to Section 6.5.
/FX
3U 3UC
FNC 12
K1
MOV
FNC 12
K5
MOV
Description
Description
4th
D8294 Averaging time for channel-1 data
D8295 Averaging time for channel-2 data
D8296 Averaging time for channel-3 data
D8297 Averaging time for channel-4 data
Series PLC)
Sets the averaging time for
channel-1 of the 1st analog
D8264
special adapter to 1.
Sets the averaging time for
channel-2 of the 1st analog
D8265
special adapter to 5.
4 Programming
4.5 Averaging Time
Setting range: 1 to 4095
Initial value: K1
Numeric data type: Decimal (K)
Description