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MELSEC-Q
10 DEVICES
10.5 Intelligent Function Module Devices (U \G )
(1) Definition
(a) The intelligent function module devices allow the High Performance model
QCPU to directly access the buffer memories of intelligent function
modules/special function modules which are mounted on at the main base
unit and extension base units.
(b) Intelligent function module devices are designated by the intelligent function
module/special function module I/O No., and the buffer memory address.
Designation method: U \G
Buffer memory address (setting range: 0 to16383 (decimal)) 1
Intelligent function module/special function module I/O No.
Setting: If the I/O No. is a 3-digit value, designate the first 2 digits.
For X/YF0.....X/Y1F0
Designate "1F"
Setting range: 00
H
to FE
H
When digital output values of channels (CH.1 to CH.4) of the Q64AD Type
Analog-Digital Conversion Module (X/Y20 to 2F) mounted at Slot 2 of the main
base unit are stored in D0 to D3, the I/O number and the buffer memory address
are specified as shown below.
U2\G11 D0
BMOV
Q64AD
12
13
CH.1 Digital output value
11
14
CH.2 Digital output value
CH.3 Digital output value
CH.4 Digital output value
K4
(2) Processing speed
The processing speed for intelligent function module devices is;
(a) Reading or writing the buffer memory of the intelligent function
module/special function module is rather faster than the "processing speed
of FROM/TO instructions." (For example, case of "MOV U2\G11 D0")
(b) To conduct reading the buffer memory of the intelligent function
module/special function module and another process in a single instruction,
add the "processing speed of FROM/TO instruction" and "processing speed
of instruction" to setup the reference value.
(For example, case of "+ U2\G11 D0 D10")
If the same buffer memory of the same intelligent function module/special
function module is used two or more times in a sequence program, the
processing speed can be increased by using the FROM instruction to read
that buffer memory data to a High Performance model QCPU device.
REMARK
1) 1: For details on buffer memory addresses and applications, refer to the
intelligent function module/special function module manual.
