YOKOGAWA EML500 Series User Manual

A-3
IM80B80T10E 21th Edition : Jul.1,2007-00
< Appendix >
Appendix 3: Master Indicator Block Diagram
1a 2b 3c 4d 5e 6f 7g 8dp 90
101 112 123 134 15VCC 14ONPLS 16GND 17+V 18COM
1 VCC
2 GND
3 +V
4 COM
5
6
7
8
14
23 32 41 50 64 73
82
91
100 11 12 13 14
DC . DC
CONV
+24V → VCC
POWER UNIT
PROCESSOR UNIT
DISPLAY UNIT
KEY SW MATRIX
I/O DECORDER
DRIVER
LATCH
CTC
DECORDER
DRIVER
(LED DISPLAY)
(COL. DRIVE SIG.)
(COL. SELECT DATA)
(DIMMER PLS)
BUFFER
+V
INKEY
SCAN SCAN
INKEY
SEL
SEG SEG
SEL
DECORDER
MPU
INT
CTC
PIO SIO
ROM RAM
Real Time INTRATE CLR
PA7 PA0 PB7 PB0
A15
A0
D7 D0
TxD
RxD
(SEG. DATA)
32k
(128k)
128k
(effective:
32k )
PIO CH A
PIO DATA CH B
DATA BUS
ADRS BUS
BACK
LIGHT
LED
+24V
GND
FG
RD A
RD B
TD A
TD B
SHLD
for displaying
unit signs

YOKOGAWA EML500 Series Specifications

General

Brand	YOKOGAWA
Model	EML500 Series
Category	Measuring Instruments
Language	English