F-18
4 Programming
4.6 Number of Averaging Time
FX
3U
/FX
3UC
Series PLC User's Manual - Analog Control Edition
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input)
4.6 Number of Averaging Time
Setting range: 1 to 4095
Initial value: K64
Numeric data type: Decimal (K)
If the number of averaging time is set for TC-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 number of
averaging time can be set for each channel.
Set the number of averaging time in the following special data registers:
1. Cautions regarding number of averaging time setting
• If the number of averaging time is set to "1", the immediate data will be stored in the temperature
measurement special data register.
• If the number of averaging time is set to "2" or more, the average value will be calculated in accordance
with the set number of averaging time, and the obtained average value will be stored in the temperature
measurement special data register.
• 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 number of averaging time.
• Set the number of 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 the error, refer to Section 5.5
2. Example of program
Special data register
Description
1st 2nd 3rd 4th
D8264 D8274 D8284 D8294 Number of averaging time for channel-1 data
D8265 D8275 D8285 D8295 Number of averaging time for channel-2 data
D8266 D8276 D8286 D8296 Number of averaging time for channel-3 data
D8267 D8277 D8287 D8297 Number of averaging time for channel-4 data
M8000
Normally
ON
FNC 12
MOV
K32 D8264
FNC 12
MOV
K128 D8265
Sets the number of averaging time to "32" for the
channel-1 data of the 1st analog special adapter.
Sets the number of averaging time to "128" for the
channel-2 data of the 1st analog special adapter.
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