Hitachi EH-150 - 7.3.1 Optional Data Receiving

Chapter 7 Automatic Sending/Receiving function (ASR)
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
N
Y
Set data in receive buffer to
receive area in CPU module
Receive mode
Optional
Receive refresh permit
Normal
(
A
)
No
(
B
)
Yes
Ethernet
EH-ETH2
Receive area
Receive buffer
(B)
CPU module
(A)
A
BC D EF
0BDE
Receive buffer
Data receive
receive
refresh permit
Internal output(CPU)
Figure 7.13 Optional control outline and time chart of Automatic receive
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