13.SELF-CHECK FUNCTION AND INITIALIZATION
86
13-3. F340A Block Diagram
+
EXC
-
EXC
+
SIG
-
SI
G
Low-pa
ss
Fi
llt
er
×
100
Exc
ita
tion
Referrence
A/D
Bu
ff
er
F.
G
FRAME
Serial
Po
rt
Pa
ralle
l
Port
P
ort
P
ort
Se
ria
l
Port
RA
M
4Kbyte
MP
U
16bit
Flash ROM
128K
Wa
tc
h
D
og
NOV
.R
A
M
1024bit
Dis
play
Key Input
HO
L
D
DZ
2Line
2Line
Para
lle
l
SI/F
D/A
RS-232C
BCD
HI
LO
SIF
CP
U
+12V
+12V
-12
V
+5V
VO
L OUT
GND
+5V
VC
C
Isolation
SI
/F
用
FR
AM
E
Power
Supply Unit
LE
D
Con
version
Vo
lt
ag
e
In
put
Output
V
olta
ge
L
N
AC
IN
F.
G
Summary of Contents for F340A
Page 1: ...F340A DIGITAL INDICATOR 14 Feb 2012 Rev 1 38 OPERATION MANUAL...
Page 9: ...CONTENTS 15 7 General Specifications 90 15 8 Accessories 91 16 CONFORMITY TO EC DIRECTIVES 92...
Page 92: ...13 SELF CHECK FUNCTION AND INITIALIZATION 83 Self check Visual Check Sequence...
Page 94: ...13 SELF CHECK FUNCTION AND INITIALIZATION 85 Initialization Sequence...