Mitsubishi Electronics MELSEC-F Manuel D’Utilisation

4 Programming

FX

3G

/FX

3U

/FX

3UC

 PLC User's Manual - Analog Control Edition

FX

3G

-2AD-BD (2-channel analog Input)

If the averaging time is set for the 2AD-BD, 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:

• 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".

→ For a detailed description of the error status, refer to Section 6.5

D8264

D8274

Averaging time for channel-1 data

D8265

D8275

Averaging time for channel-2 data

M8000

Normally
ON

FNC 12

MOV

K1

D8264

FNC 12

MOV

K5

D8265

Sets the averaging time for
channel-1 of the 1st analog
board to 1.

Sets the averaging time for
channel-2 of the 1st analog
board to 5.