L
ON
W
ORKS
I
NTERFACE
M
ODULE
O
PEN
N
ET
C
ONTROLLER
L
ON
W
ORKS
I
NTERFACE
M
ODULE
U
SER
’
S
M
ANUAL
23
Defined Network Variables
The application program installed in the L
ON
W
ORKS
interface module defines network variables for transmit and receive
data listed below. When you modify or create an application program, do not use these variables, otherwise verification of
the application program will be difficult. The network variables, their data type and structure are listed in the following
tables.
Input Network Variables
Output Network Variables
Input Network Variable
Data Type and Structure
Used For
nv_i8[0]
unsigned char
8-point inputs, 8 bits
nv_i8[1]
unsigned char
8-point inputs, 8 bits
nv_i8[2]
unsigned char
8-point inputs, 8 bits
nv_i8[3]
unsigned char
8-point inputs, 8 bits
nv_i8[4]
unsigned char
8-point inputs, 8 bits
nv_i8[5]
unsigned char
8-point inputs, 8 bits
nv_i8[6]
unsigned char
8-point inputs, 8 bits
nv_i8[7]
unsigned char
8-point inputs, 8 bits
nv_i16
BIT16_DAT
16-point inputs, 8 bits
×
2
nv_i24
BIT24_DAT
24-point inputs, 8 bits
×
3
nv_i32
BIT32_DAT
32-point inputs, 8 bits
×
4
nv_i40
BIT40_DAT
40-point inputs, 8 bits
×
5
nv_i48
BIT48_DAT
48-point inputs, 8 bits
×
6
nv_i56
BIT56_DAT
56-point inputs, 8 bits
×
7
nv_i64
BIT64_DAT
64-point inputs, 8 bits
×
8
Output Network Variable
Data Type and Structure
Used For
nv_o8[0]
unsigned char
8-point outputs, 8 bits
nv_o8[1]
unsigned char
8-point outputs, 8 bits
nv_o8[2]
unsigned char
8-point outputs, 8 bits
nv_o8[3]
unsigned char
8-point outputs, 8 bits
nv_o8[4]
unsigned char
8-point outputs, 8 bits
nv_o8[5]
unsigned char
8-point outputs, 8 bits
nv_o8[6]
unsigned char
8-point outputs, 8 bits
nv_o8[7]
unsigned char
8-point outputs, 8 bits
nv_o16
BIT16_DAT
16-point outputs, 8 bits
×
2
nv_o24
BIT24_DAT
24-point outputs, 8 bits
×
3
nv_o32
BIT32_DAT
32-point outputs, 8 bits
×
4
nv_o40
BIT40_DAT
40-point outputs, 8 bits
×
5
nv_o48
BIT48_DAT
48-point outputs, 8 bits
×
6
nv_o56
BIT56_DAT
56-point outputs, 8 bits
×
7
nv_o64
BIT64_DAT
64-point outputs, 8 bits
×
8