10 - 4 10 - 4
MELSEC-Q
10 DEDICATED INSTRUCTIONS
Device Item
Set
Data
Setting
Range
Setting
Side
*2
(S1)+9
Correspond-
ing file number
Specify the file number when the target MODBUS
R
device is the extended file
register.
0 to 65535
(*3, *4)
User
(S1)+10
Target
MODBUS
R
device head
number
Specify the head number of the read target MODBUS
R
device.
As the device head number, specify the lower 5 digits of "(actual device number)
- 1".
(With the exception of the file number and device number of the extended file
register)
(Example) Specify "31" when accessing the input 100032.
0 to 65535
(*3, *4)
User
Set the read points of the MODBUS
R
device.
Use the following unit to set the access points.
Type specification of the target
MODBUS
R
device
Setting
unit
Access points that can be set
01
H
: Coil
02
H
: Input
Bit
04
H
: Input register
05
H
: Holding register
07
H
: Extended file register
Word
Refer to *6.
(S1)+11 Access
points
0 to 2000
(*4)
User
(S1)+12
Read s
et
ting
Read data
storage size
Set the word size of the read data stored in the argument (D1) and later.
System
(S1)+13
Correspond-
ing file number
Specify the file number when the target MODBUS
R
device is the extended file
register.
0 to 65535
(*3, *5)
User
(S1)+14
Target
MODBUS
R
device head
number
Specify the head number of the write target MODBUS
R
device.
As the device head number, specify the lower 5 digits of "(actual device number)
- 1".
(With the exception of the file number and device number of the extended file
register)
(Example) Specify "31" when accessing the input 400032.
0 to 65535
(*3, *5)
User
Set the write points of the MODBUS
R
device.
Use the following unit to set the access points.
Type specification of the target
MODBUS
R
device
Setting
Access points that can be set
01
H
: Coil
02
H
: Input
Bit
04
H
: Input register
05
H
: Holding register
07
H
: Extended file register
Word
Refer to *6.
(S1)+15 Access
points
0 to 1968
(*5)
User
(S1)+16
Wri
te s
et
ting
Write data
storage size
Set the word size of the write data stored in the argument (S2) and later.
Set "1" when performing read only.
When the access target MODBUS
R
device (type specification of the target
MODBUS
R
device) is "01
H
: Coil" or "02
H
: Input", pay attention to the following.
• Set the "access points/16 (rounded up to the nearest integer)".
• When the number of write points is a fraction, the excess area is ignored.
(Refer to (3) in POINT on the next page.)
1 to 125
User
*1: Set the value that satisfies the following conditions.
Condition 1: The IP address class is any of A, B and C.
Condition 2: The host address bits are not all "0" or all "1".
*2: The setting side is as described below.
User: Data are set by the user before dedicated instruction execution.
System: The programmable controller CPU stores the result of dedicated
instruction execution.
*3: When specifying a value of 32768 (8000
H
) or more in a sequence program, set
the value in hexadecimal.