Mitsubishi Electric MELSEC-FX3S Series - Page 455

K-21
4 Programming
4.4 Input sensor selection
FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input)
K
FX
3U
-4AD-PNK
-ADP
L
FX
3U
-4AD-TC
-ADP
M
PID Instruction (FNC 88)
4.4 Input sensor selection
Turn on the Pt1000 type or off the Ni1000 type selection special auxiliary relay to select the Pt1000 or Ni1000
for PNK-ADP.
The input sensor type will be selected for all the channels at the same time.
To select the input sensor type, 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
M8281
Input sensor selection:
OFF: Pt1000
ON: Ni1000
Special auxiliary relay
Description
1st 2nd
M8281 M8291
Input sensor selection:
OFF: Pt1000
ON: Ni1000
Special auxiliary relay
Description
1st 2nd 3rd 4th
M8261 M8271 M8281 M8291
Input sensor selection:
OFF: Pt1000
ON: Ni1000
1) To select Pt1000 for the 1st adapter:
M8001
M8261
Normally OFF
2)To select Ni1000 for the 2nd adapter :
M8000
M8271
Normally ON