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3 SPECIFICATIONS
3.6 Receive Buffer
Command, Function Name
INPUT
INKEY$
INPUT$
LINE INPUT
ZRECEIVE
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The receive buffer is a memory buffer used for sending and receiving data
between the QD51 (-R24)'s RS-232 interface and RS-422/485 interface and an
external device connected to them.
The receive buffer for each respective interface is 1024 bytes. (The receive buffer
size can be changed by the ZCNTL command.)
The receive buffer stores the data sent from an external device.
When the data receive command is executed, the receive buffer data are stored
in the area shown by the designated variable.
The following lists the available data receive commands.
Refer to the Programming Manual (Commands) for the data receive commands
and the send/receive processing.
QD51(-R24)
User Program
PRINT, LPRINT
command, etc. executed.
BASIC
program
INPUT, INKEY
command,
etc. executed.
Processing Contents
• Carries out key input of data.
• Character code control codes (0
(7F
) cannot be handled as data.
H
• Stores the data received from the interface in the designated variable.
• Character code control codes (0
be handled as data.
• Carries out key input of data.
• Character code control codes (0
handled as data.
• Stores the data received from the interface in the designated variable
Receive Buffer
For CH1
1024 Bytes
For CH2
1024 Bytes
For CH3
1024 Bytes
MELSEC-Q
to 1F
), commas (2C
) and DEL
H
H
H
, 03
, 13
, 80
and FD
to FF
H
H
H
H
H
to 1F
) and DEL (7F
) cannot be
H
H
H
External Device
Data transmission
Console,
terminal,
personal
computer,
Data reception
) cannot
H
printer,
etc.
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