
75
18. Block Diagram
Analog output
Strain gage
amplifier
FF.G
+12V
L
AC IN
N
F.G
FRAME
Buffer
Option card
Bridge power
supply
Zero regulator
circuit
Gain regulator
circuit
Reference
voltage line
Filter circuit
Voltage shift circuit
A/D
conversion
CPU
SRAM
(128kByte)
LED indicator
EEPROM
(4kbit)
RS232C
I/F
BCD
I/F
D/A
I/F
TEDS
I/F
Power supply unit
TEDS
memory
I/O signal
control
connector
A
B
C
D
12V
+5V
+3.3V
AC power type
+12V
+
DC IN
–
F.G
FRAME
Power supply unit
–12V
+5V
+3.3V
DC power type