Mitsubishi Electronics MELSEC-F Manuel D’Utilisation

H-23

4 Programming

4.9 Averaging Time

/FX

3UC

PLC User's Manual - Analog Control Edition

-3A-ADP (2-channel analog Input, 1-channel analog output)

Comm

on I
te

-4AD

3UC

-4

-4A
D

-A

-2A
D

-BD

-4DA

-4D
A

-AD
P

-1D
A

-BD

-3

A-

ADP

-4

-P

-4A
D

-P

-
A

4.9

Averaging Time

Setting range: 1 to 4095

Initial value: K1

Numeric data type: Decimal (K)

If the averaging time is set for the 3A-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

, FX

3UC

Series PLC

• FX

Series PLC

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".

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

2. Program Example (For FX

, FX

3UC

Series PLC)

Special auxiliary relay

Description

1st

2nd

3rd

4th

D8264

D8274

D8284

D8294

Averaging time for channel-1 data

D8265

D8275

D8285

D8295

Averaging time for channel-2 data

Special data register