194
5 MODULE DEDICATED INSTRUCTION
5.4 Network Dedicated Instruction
Connection opening or closing
ZP_OPEN
The following instruction can go in the dotted squares.
ZP_OPEN
■
Executing condition
■
Argument
*1 Local devices and file registers per program cannot be used as setting data.
Processing details
This instruction establishes (opens) a connection with external device for data communication.
Instruction
Executing condition
ZP_OPEN
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..9]
Output argument
ENO
Execution result
Bit
d
Variable that turns ON upon completion of the
instruction
d[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)
(d)
Ether
EN
ENO
Un*
d
s1
s2
ZP_OPEN
ZP_OPEN
(EN, Un*, s1, s2, d);
ENO:=
Structured ladder/FBD
ST
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