7.3.1 Optional Data Receiving - Hitachi HIDIC EH-150 Applications Manual

7.3.1 Optional data receiving

- Receive mode is Optional receiving mode
EH-ETH store data in receive buffer from "other station" to receiving area (CPU internal output) when user
program "receive refresh permit".
Outline and time chart of Optional receiving mode is shown in figure 7.3.2.1.
Data receive
Receive buffer
receive
refresh permit
Internal output(CPU)
Figurer 7.3.1.1 Optional control outline and time chart of Automatic receive
Chapter 7 Automatic Sending/Receiving function (ASR)
(A)
Data receive
Y
Receive mode
Optional
Receive refresh permit
Yes
Set data in receive buffer to
(B)
receive area in CPU module
EH-CPU448
Receive area
Ethernet
A B
0
7-15
N
Normal
No
EH-ETH
Receive buffer
(B)
(A)
C D
B
E F
D E