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FX3U/FX3UC Series PLC User's Manual - Analog Control Edition
4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input)
A
Averaging Time
Setting range: 1 to 4095
Initial value: K1
Numeric data type: Decimal (K)
Special data register
Description
2nd
3rd
4th
D8264
D8274
D8284
D8294
Averaging time for channel-1 data
D8265
D8275
D8285
D8295
Averaging time for channel-2 data
D8266
D8276
D8286
D8296
Averaging time for channel-3 data
D8267
D8277
D8287
D8297
Averaging time for channel-4 data
C
FX3U-4AD-ADP
1st
B
FX3U-4AD
FX3UC-4AD
If the averaging time is set for the PT-ADP, the averaged temperature measurement data will be stored in the
D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293. The averaging time can be set for
each channel.
Set the averaging time in the following special data registers:
Common Items
4.5
4.5 Averaging Time
D
• If the averaging time is set to "1", the immediate data will be stored in the temperature measurement
special data register.
E
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, the error
signal will be output.
→ For a detailed description of error status, refer to Section 5.5
F
2. Program Example
M8000
K1
D8264
Sets the averaging time to "1" for the channel-1
data of the 1st analog special adapter.
FNC 12
MOV
K5
D8265
Sets the averaging time to "5" for the channel-2
data of the 1st analog special adapter.
G
FX3U-4AD-PTW
-ADP
Normally
ON
FNC 12
MOV
FX3U-4AD-PT
-ADP
• After turning the PLC power on, the average data will be stored in the temperature measurement special
data registers (D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293) until the number
of data items is increased to the set averaging time.
FX3U-4DA-ADP
• If the averaging time is set to "2" or more, the average value will be calculated in accordance with the set
averaging time, and the average value obtained will be stored in the temperature measurement special
data register.
FX3U-4DA
1. Cautions regarding averaging time setting
H
FX3U-4AD-TC
-ADP
I
PID Instruction
(FNC 88)
F-17