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R-IN32 Series CC-Link Remote device station
8.2.7
Send Data Write Complete Flag and Receive Data Read Request
(CCS_M3SDOK_RDRQ)
15
14
13
CCS_M3SD
0
0
0
OK_RDRQ
R/W
0
0
0
Bit Position
Bit Name
8
DRDREQ
0
WPFLG
R18UZ0056EJ0102
Dec. 28, 2018
12
11
10
9
8
DRD
0
0
0
0
REQ
0
0
0
0
R/W
<Write>
Upon reading the receive data, set this bit to "1", and upon completing the read, set it
to "0".
<Read>
The data written will be read.
Initial setting: 00H
After initial setting:
Writes 01h when starting to read reception data and writes 00h when reading is
completed.
<Write>
Set the flag to "write" after completing data write to the update buffer. (Write "01" as
the data value.)
When the flag becomes "write", the data transfer from the update buffer to the send
buffer starts.
(Caution 1) After writing all the data to be sent to the update buffer at one time, set
the flag to "write".
(Caution 2) Setting this flag to "write" starts sending and receiving. Ensure to set
the flag to "write" after writing the initial data.
<Read>
The flag becomes "1" as the "write" operation begins. When the data transfer to
the send buffer completes, the flag becomes "0".
Initial setting:
Writes 01h when initial data setting has been completed during initial processing.
(The communication will not start unless this operation is performed.)
After initial setting:
Writes 01h after transmission data is written to the CCS during transmission
processing.
7
6
5
4
3
0
0
0
0
0
0
0
0
0
0
Function
8. Memory Map
Address
2
1
0
WPF
0
0
400F B080H
LG
0
0
R/W
Page 24 of 83
Initial
Value
00H
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