2.1
Cyclic Communication Function
2-3
2.1.2 Operation of Cyclic Communication
The communication behavior in the cyclic communication varies according to the settings of
connections.
Description
Input Only
Data is sent in the input direction only (From target to originator)
Exclusive Owner
Data is sent bi-directionally.
Send
buf
fer
R
ec
ei
ve
buf
fer
D
at
a
ar
ea
R
ec
ei
ve
buf
fer
Send
buf
fer
D
at
a
ar
ea
Input Only
Exclusive Owner
: Sends cyclic data.
: Refreshes data.
R
ec
ei
ve
buf
fer
Send
buf
fer
D
at
a
ar
ea
D
at
a
ar
ea
Originator
Target
•
For some target devices, "Exclusive Owner" setting is not available.
•
When PLCs including FP0H are set as targets, "Input Only" setting is only available.
•
For sending/receiving data between PLC and PLC, it is necessary to use two connections
and open them each other.
The transfer operations from "Data area" to "Send buffer" and from "Receive buffer" to "Data
area" in each device are called "Refresh".
Содержание AFP0HC32ET
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