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7 SPECIFICATIONS
7-3.
F377A Block Diagram
Vin ＋
1/5
in －
250Ω
Iin ＋
A.GND
SHIELD
FRAME
Chapter
7
Isolation
+5V
+12V
+9VA
I
I
Power Supply Unit
84
Gain
adjustment
Low-pass
Fillter
A/D
Conversion
Reference
Voltage
Serial
Port
Port
LCD
Driver
Touch
Panel
LCD
Input
Analogue Digital
-9VA +5V
D
+
DC IN (24V)
－
F.G
FRAME
Buffer
MPU
CPU
Serial
32bit
Port
16Kbyte
Serial
Port
Port
+MONITOR
- MONITOR
RS-232C
Watch
Dog
External
Flash
Flash
ROM
ROM
256Kbyte
External
Lithium
SRAM
battery
RAM
NOV.RAM
Port
4096bit
CC-Link
Device Net
Option
BCD
D/A
(DAVorDAI)
Control
T/H DZ WORK0~3
Input
10 Line
SECTION GRAPH TRIG
CAL0 CAL1
Control
HI HH OK
Output
LO LL
8 Line
H/E RUN EVENT
SI/F
SIF
Standard
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