5 MODULE DEDICATED INSTRUCTION
5.4 Network Dedicated Instruction
201
5
Fixed buffer communication
ZP_BUFRCV
The following instruction can go in the dotted squares.
ZP_BUFRCV
■
Executing condition
■
Argument
*1 Local devices and file registers per program cannot be used as setting data.
Processing details
This instruction reads receive data from external device in fixed buffer communication.
This instruction is used in a main program.
Instruction
Executing condition
ZP_BUFRCV
Input/output
argument
Name
Description
Data type
Input argument
EN
Executing condition
Bit
Un*
Start I/O number of the module
(00 to FE: Higher two digits when expressing the I/
O number in three digits)
String
s1
Connection number (1 to 16)
ANY16
s2
Variable that stores control data
Array of ANY16 [0..1]
Output argument
ENO
Execution result
Bit
d1
Start number of the device that stores read data
ANY16
d2
Variable that turns ON upon completion of the
instruction
d2[1] also turns ON at the time of error completion.
Array of bit [0..1]
Setting
data
Internal device
R, ZR
J
\
U
\G
Zn
Constant
K, H
Others
Bit
Word
Bit
Word
(s1)
(s2)
(d1)
(d2)
Ether
EN
ENO
Un*
d1
d2
s1
s2
ZP_BUFRCV
Structured ladder/FBD
ST
ZP_BUFRCV
(EN, Un*, s1, s2, d1, d2);
ENO:=
Summary of Contents for MELSEC System Q
Page 1: ...MELSEC Q L Structured Programming Manual Special Instructions ...
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Page 307: ...10 SFC CONTROL INSTRUCTION 10 2 SFC Transition Condition Comment Read 305 10 MEMO ...
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