5-144
5.4 CC-Link IE Controller Network, MELSECNET/H, and Ethernet Instruction
5.4.19 BUFRCVS instruction
Z_BUFRCVS
Function
This instruction reads receive data from external device in fixed buffer communication.
This instruction is used in an interrupt program.
(1) Receive data
Device
Item
Setting data
Setting range
Setting side
*1
+0
Receive data length
Data length of the data read from the fixed buffer data area is stored.
(Data length becomes the number of words or the number of bytes
depending on the procedure used in fixed buffer communication.)
–
System
With procedure (communication in binary code): The number of
words
1 to 1017
With procedure (communication in ASCII code): The number of
words
1 to 508
Nonprocedural communication (communication in binary code):
The number of bytes
1 to 2046
+1
+n
Receive data
Data read from the fixed buffer data area are stored in ascending
address order.
–
System
d
d
to
d
Содержание QCPU
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