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Fixed buffer communication
ZP_BUFRCV
Ether
Structured ladder/FBD
ZP_BUFRCV
EN
ENO
Un*
d1
s1
d2
s2
The following instruction can go in the dotted squares.
ZP_BUFRCV
■Executing condition
Instruction
ZP_BUFRCV
■Argument
Input/output
Name
argument
Input argument
EN
Un*
s1
s2
Output argument
ENO
d1
d2
Setting
Internal device
*1
data
Bit
Word
(s1)
(s2)
(d1)
(d2)
*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.
ST
ENO:=
(EN, Un*, s1, s2, d1, d2);
ZP_BUFRCV
Executing condition
Description
Executing condition
Start I/O number of the module
(00 to FE: Higher two digits when expressing the I/
O number in three digits)
Connection number (1 to 16)
Variable that stores control data
Execution result
Start number of the device that stores read data
Variable that turns ON upon completion of the
instruction
d2[1] also turns ON at the time of error completion.
R, ZR
J\
Bit
Data type
Bit
String
ANY16
Array of ANY16 [0..1]
Bit
ANY16
Array of bit [0..1]
U\G
Zn
Word
5 MODULE DEDICATED INSTRUCTION
5.4 Network Dedicated Instruction
Constant
Others
K, H
201
5
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