Mitsubishi Electric MELSEC-FX3S Series - Selection of Temperature Unit

I-20
4 Programming
4.3 Selection of Temperature Unit
FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Analog Control Edition
FX 3U -4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input)
4.3 Selection of Temperature Unit
To switch the temperature unit of the PT-ADP turn the special auxiliary relay ON for Fahrenheit (°F) or OFF
for Centigrade (°C).
To switch the temperature unit, use the following special auxiliary relays:
•FX
3S Series PLC
•FX
3G/FX3GC Series PLC
•FX
3U/FX3UC Series PLC
1. Program Example (For FX3U/FX3UC Series PLC)
Special auxiliary relay Description
M8280
Selection of temperature unit:
OFF: Centigrade (°C)
ON: Fahrenheit (°F)
Special auxiliary relay
Description
1st 2nd
M8280 M8290
Selection of temperature unit:
OFF: Centigrade (°C)
ON: Fahrenheit (°F)
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