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L-18
4 Programming
4.2 List of Special Devices
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input)
4.2 List of Special Devices
If TC-ADP is connected, special devices will be assigned automatically as shown in the following table:
•FX
3U, FX3UC Series PLC
R: Read / W: Write
Special
device
Device number
Description
Attribute Refer to
1st 2nd 3rd 4th
Special
auxiliary
relay
M8260 M8270 M8280 M8290 Selects the temperature unit R/W
Section
4.3
M8261 M8271 M8281 M8291
Switches the thermocouple type
between type K and type J
R/W
Section
4.4
M8262 to
M8269
M8272 to
M8279
M8282 to
M8289
M8292 to
M8299
Unused (Do not use.) - -
Special
data
register
D8260 D8270 D8280 D8290
Channel-1 temperature measurement
data
R
Section
4.5
D8261 D8271 D8281 D8291
Channel-2 temperature measurement
data
R
D8262 D8272 D8282 D8292
Channel-3 temperature measurement
data
R
D8263 D8273 D8283 D8293
Channel-4 temperature measurement
data
R
D8264 D8274 D8284 D8294
Averaging time for channel 1
(Setting range: 1 to 4095)
R/W
Section
4.6
D8265 D8275 D8285 D8295
Averaging time for channel 2
(Setting range: 1 to 4095)
R/W
D8266 D8276 D8286 D8296
Averaging time for channel 3
(Setting range: 1 to 4095)
R/W
D8267 D8277 D8287 D8297
Averaging time for channel 4
(Setting range: 1 to 4095)
R/W
D8268 D8278 D8288 D8298 Error status R/W
Section
4.7
D8269 D8279 D8289 D8299 Model code = 10 R
Section
4.8