July 2004
Intermediate to advanced
352 pages
9h 30m
English
Content preview from Mitsubishi FX Programmable Logic Controllers, 2nd Edition
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//INTEGRAS/ELS/PAGINATION/ELSEVIER UK/PLC/3B2/FINALS-7-6-04/0750656794-CH034.3D – 366 – [344–369/26]
19.6.2004 9:23PM
34.25 Practic al ^ analogue to digital conversion
Hardware diagram
ConnectupthehardwarediagramasshowninFigure34.19butinitiallyleavetheinput
to Channel 2 disconnected.
Note: The input resistance between the I
þ
and V I terminals is 250 , therefore with a
250 externally connected resistor also of 250 , the total circuit resistance will be
500 .
Hence I ¼
V supply
500
Amps
Voltage (V) Current (mA)
00
12
24
36
3.5 7*
510
612
714
8* 16
918
10 20
*
I ¼ 7 mA, current example – Page 353.
*
V ¼ 8 V, voltage example – Page 352.
0–10 V
Power Supply
FX2N-4AD FX2N ...
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