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5.4 Network Dedicated Instruction
5.4.27 BUFRCV instruction
5-227
ZP_BUFRCV
5
MODULE DEDICATED
INSTRUCTION
ZP_BUFRCV
5.4.27 BUFRCV instruction
ZP_BUFRCV
*1: Local devices and file registers per program cannot be used as setting data.
Function
This instruction reads receive data from external device in fixed buffer communication.
This instruction is used in a main program.
ZP_BUFRCV
Executing condition
:
indicates the following instruction.
ZP_BUFRCV
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
*1
Internal device
R, ZR
J\
U\G
Zn
Constant
K, H
Others
Bit Word Bit Word
Ether
EN ENO
Un* d1
d2s1
s2
ZP_BUFRCV
Structured ladder/FBD ST
ZP_BUFRCV
(EN, Un*, s1, s2, d1, d2);
ENO:=
s1
s2
d1
d2