Mitsubishi MELSEC-F FX3U Series User Manual

F-16
4 Programming
4.2 List of Special Devices
FX 3U /FX 3UC Series 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 as shown in the following table:
R: Read / W: Write
4.3 Selection of Temperature Unit
The state of special auxiliary relays decides TC-ADP's temperature unit as shown in the table below.
To switch the temperature unit, use the following special auxiliary relays:
1. Example of program
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
Number of averaging time for channel 1
(Setting range: 1 to 4095)
R/W
Section
4.6
D8265 D8275 D8285 D8295
Number of averaging time for channel 2
(Setting range: 1 to 4095)
R/W
D8266 D8276 D8286 D8296
Number of averaging time for channel 3
(Setting range: 1 to 4095)
R/W
D8267 D8277 D8287 D8297
Number of 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
Special auxiliary relay
Description
1st 2nd 3rd 4th
M8260 M8270 M8280 M8290
Selection of temperature unit:
OFF: Centigrade (
°
C)
ON: Fahrenheit (
°
F)
1)To switch the temperature unit to
centigrade (
° C) for the 1st adapter:
M8001
M8260
Normally OFF
2) To switch the temperature unit to
Fahrenheit (
° F) for the 2nd adapter:
M8000
M8270
Normally ON

Mitsubishi MELSEC-F FX3U Series Specifications

General

Brand	Mitsubishi
Model	MELSEC-F FX3U Series
Category	Controller
Language	English