Mitsubishi Electric QJ71MT91 User Manual page 219

10 DEDICATED INSTRUCTIONS
Device Item
Correspond-
(S1)+9
ing file number
Target
MODBUS
(S1)+10
device head
number
(S1)+11 Access points
Read data
(S1)+12
storage size
Correspond-
(S1)+13
ing file number
Target
MODBUS
(S1)+14
device head
number
(S1)+15 Access points
Write data
(S1)+16
storage size
10 - 4
Specify the file number when the target MODBUS device is the extended file
register.
Specify the head number of the read target MODBUS 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.
Set the read points of the MODBUS device.
Use the following unit to set the access points.
Type specification of the target
MODBUS device
01 : Coil
H
02 : Input
H
04 : Input register
H
05 : Holding register
H
07 : Extended file register
H
Set the word size of the read data stored in the argument (D1) and later.
Specify the file number when the target MODBUS device is the extended file
register.
Specify the head number of the write target MODBUS 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.
Set the write points of the MODBUS device.
Use the following unit to set the access points.
Type specification of the target
MODBUS device
01 : Coil
H
05 : Holding register
H
07 : Extended file register
H
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 device (type specification of the target
MODBUS device) is "01 : Coil", pay attention to the following:
H
• 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: 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
the value in hexadecimal.
Set Data
Setting
Access points that can be set
unit
Bit
Refer to *6.
Word
Setting Access points that can be set
Bit
Refer to *6.
Word
) or more in a sequence program, set
H
MELSEC-Q
Setting Setting
*2
Side
Range
0 to 65535
User
(*3, *4)
0 to 65535
User
(*3, *4)
0 to 2000
User
(*4)
System
0 to 65535
User
(*3, *5)
0 to 65535
User
(*3, *5)
0 to 1968
User
(*5)
1 to 125 User
10 - 4