Mitsubishi Electric MELDAS C6 Programming Manual page 337

BUFSND ... Data transmission (for fixed–buffer communication)
Bit device
X Y M L F B SB T SM V T
S1
S2
S3
D1
BUFSND
Setting data
" Un " Head input/output No. for Ethernet I/F card
S1 Connection No. (1 to 8)
S2 Head device of local station storing control data
S3 Head No. of device to store the data to be sent
Local device that turns 1 scan ON at completion of command.
D1
(D1)+1 device also turns ON at error completion.
Function
Sends data to client device. (Fixed-buffer communication.)
(1) Control data
Device Item
(S2) + 0 System area
(S2) + 1 Completion
status
*1: User : Data to be set by user before executing exclusive command.
System : The results of the exclusive command executed is stored by the sequencer CPU.
(2) Send data
Device Item
(S3) + 0 Send data
length
(S3) + 1 to Send data
(S3) + n
(3) Error code
Refer to OPEN command for details of error code.
9. Exclusive Commands 1
BUFSND
Usable device
Word device
C D R W SW Z SD K
Command
ZP.BUFSND
Details
Setting data
The status at completion is stored.
0000 : Normal completion
H
Other than 0000 : Error completion
H
(error code)
Setting data
Designate the send data length.
Designate the data length according to the
communication procedure.
Procedural : No. of words
Non-procedural : No. of bytes
Designate the send data.
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Con-
Pointer
stant
H
" Un " S1 S2 S3
—
Digit
No. of
desig- Index
steps
nation
P
13
D1
Data type
BIN16 bit
BIN16 bit
BIN16 bit
BIN16 bit
Bit
Setting Setting
range side (*1)
— —
— System
Setting Setting
range side
User
1 to 1017
1 to 2046
— User