7.3.1 Optional Data Receiving - Hitachi EH-150 Applications Manual

7.3.1 Optional data receiving

- Receive mode is Optional receiving mode
EH-ETH2 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 7.13.
Data receive
Receive buffer
receive
refresh permit
Internal output(CPU)
Figure 7.13
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
CPU module
Receive area
Ethernet
A B
0
Optional control outline and time chart of Automatic receive
7-18
N
Normal
No
EH-ETH2
Receive buffer
(B)
(A)
C D
B
E F
D E