Mitsubishi FX3U-4AD User Manual page 359

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input)
3U
4.4 Temperature Measurement
The temperature data input in the PTW-ADP will be stored in the special data registers.
The special data registers that store the temperature data are shown in the following table:
• FX , FX Series PLC
3U 3UC
Special data register
1st 2nd
D8260 D8270
D8261 D8271
D8262 D8272
D8263 D8273
• FX Series PLC
3G
Special data register
1st 2nd
D8280 D8290
D8281 D8291
D8282 D8292
D8283 D8293
The immediate data or the average data (data averaged in accordance with the specified averaging time) will
be stored in the above data registers as the temperature measurement data.
1. Caution regarding temperature measurement
The special data registers for temperature measurement data are for reading only.
Do not change (rewrite) the current data using the sequence program, indicator, or device monitor of the
programming tool.
2. Program Example (For FX
M8000
Normally
ON
Even if the temperature measurement data is not stored in the D100 or the D101, the D8260 or the D8261
can be directly used in the arithmetic operation instruction or a PID instruction.
3rd 4th
D8280 D8290 Stores the channel-1 temperature measurement data.
D8281 D8291 Stores the channel-2 temperature measurement data.
D8282 D8292 Stores the channel-3 temperature measurement data.
D8283 D8293 Stores the channel-4 temperature measurement data.
Description
Stores the channel-1 temperature measurement data.
Stores the channel-2 temperature measurement data.
Stores the channel-3 temperature measurement data.
Stores the channel-4 temperature measurement data.
→ For a detailed description of the averaging time, refer to Section 4.6.
, FX Series PLC)
3U 3UC
FNC 12
D8260 D100
MOV
FNC 12
D8261 D101
MOV
Description
Stores the channel-1 temperature measurement
data of the 1st analog special adapter in D100.
Stores the channel-2 temperature measurement
data of the 1st analog special adapter in D101.
4 Programming
4.4 Temperature Measurement
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