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7. INITIAL SETTING OF TRANSMISSION CONTROL DATA TO
BUFFER MEMORY
MELSEC-A
?tting method
(1) Bidirectional mode
b15
to
bO
Buffer memory
address 112H
(Default: 0)
Write I .
0: No-protocol mode
1: Bidirectional mode
POI N TI
When the bidirectional mode is set, settings with buffer memory addres-
ses 11 3H to 11 5H are valid.
(2) Time-out check time
b15
to
bO
Buffer memory
address 113H
(Default: OH)
Write OH to FFFFH.
OH:
Time-out check disabled (infinite wait
1 H to FFFFH: Time-out check enabled
Set value is processed as 1 to
65535 which is the time-out check tin
Time-out check is executed during th
response message wait.
,
(Unit: 100 msec)
(3)
Data validlinvalid at simultaneous transmission
/
Write 1
or
0.
Li
0: Received data valid:
The ACK code is transmitted after receiving data.
1: Received data invalid:
Received data is ignored.
Write 1
or
0.
I
0: Send data valid:
Waits for the response message atter sending da
(4) Check sum enable/disable
1 : Send data invalid:
Data send error occurs and the operation ends.
b15
to
bO
Buffer memory
address 11 5H
(Default: 0)
i - - - - - -
Write 1 or 0.
0: Check sum enable added.
1: Check sum disabled not added
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