Temperature Measurement - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4AD-PNK-ADP (4-channel Resistance Thermometer Data Input)
3U
4.6 Averaging Time
If the averaging time is set for the PNK-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:
• FX Series PLC
3S
Special data register
D8284
D8285
D8286
D8287
• FX /FX Series PLC
3G 3GC
Special data register
1st
D8284
D8285
D8286
D8287
• FX /FX Series PLC
3U 3UC
1st
D8264
D8265
D8266
D8267
1. Cautions regarding averaging time setting
• If the averaging time is set to "1", the immediate data will be stored in the temperature measurement
special data register.
• 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.
• 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.
• 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.
• 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
PLC User's Manual - Analog Control Edition
Averaging time for channel-1 data
Averaging time for channel-2 data
Averaging time for channel-3 data
Averaging time for channel-4 data
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
Special data register
2nd 3rd
D8274 D8284 D8294
D8275 D8285 D8295
D8276 D8286 D8296
D8277 D8287 D8297
→ For a detailed description of error status, refer to Section 5.5.
/FX Series PLC)
3U 3UC
FNC 12
K32
MOV
FNC 12
K128
MOV
Description
Description
4th
Averaging time for channel-1 data
Averaging time for channel-2 data
Averaging time for channel-3 data
Averaging time for channel-4 data
Sets the averaging time to "32" for the channel-1
D8264
data of the 1st analog special adapter.
Sets the averaging time to "128" for the channel-2
D8265
data of the 1st analog special adapter.
4 Programming
4.6 Averaging Time
Setting range: 1 to 4095
Initial value: K64
Numeric data type: Decimal (K)
Description
K
L
M
K-23