YOKOGAWA Yew 80 Series, Руководство пользователя, Страница: 19 / 66

4-1
IM 01B04K01-02E
Principles of Operation
1
2
3
App
1
2
3
5
6
7
8
4
4.1 Principle of Operation
Input signals are converted to digital data by the A/D conversion circuit. The resulting digital
data is processed (square root calculation, etc.) by the microcomputer, and the alarm relay
is then energized/de-energized by alarm calculation processing (comparison, etc.).
F0401.ai
SET
N
L
GND
Input
processing
circuit 1
Multiplexer
Input
processing
circuit 2
(*1)
A/D
conversion
circuit
Micro-
processor
Relay
output 1
Relay
output 2
(*3)
Handy
Terminal
*1: SKYD-30x only
*2: SKYD-x04 only
*3: Except SKYD-10x
Power
supply circuit
Display setter (*2)
Power
supply
1
2
5
6
A
B
J
F
H
K
Figure 4-1 Hardware Function Block Diagram
Chapter 4 Principles of Operation