Mitsubishi Electric FX3G User Manual page 395

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input)
3U
4.4 Temperature Measurement
The temperature data input in the PT-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 Series PLC
3S
Special data register
D8280
D8281
D8282
D8283
• FX /FX Series PLC
3G 3GC
Special data register
1st
D8280
D8281
D8282
D8283
• FX /FX Series PLC
3U 3UC
Special data register
1st
D8260
D8261
D8262
D8263
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.
PLC User's Manual - Analog Control Edition
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.
2nd
D8290 Stores the channel-1 temperature measurement data.
D8291 Stores the channel-2 temperature measurement data.
D8292 Stores the channel-3 temperature measurement data.
D8293 Stores the channel-4 temperature measurement data.
2nd 3rd 4th
D8270 D8280 D8290
D8271 D8281 D8291
D8272 D8282 D8292
D8273 D8283 D8293
→ For a detailed description of the averaging time, refer to Section 4.5.
/FX Series PLC)
3U 3UC
FNC 12
D8260
MOV
FNC 12
D8261
MOV
Description
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.
Stores the channel-1 temperature measurement
D100
data of the 1st analog special adapter in D100.
D101 Stores the channel-2 temperature measurement
data of the 1st analog special adapter in D101.
4 Programming
4.4 Temperature Measurement
Description
A
B
C
D
E
F
G
H
I
J
I-21