Specifications
App - 13
Appendix 4 Intelligent Function Module Direct Device
In this document, writing and reading of data are performed using the intelligent
function module direct device in order to simplify the sequence program and reduce
steps
(1) Intelligence function module direct device
This device directly accesses the buffer memory of the intelligent function
module/special function module from the QCPU.
Designation method
: U \G
Buffer memory address (0 to 16383 with a decimal)
High-order two digits when expressing the I/O number of
intelli
g
ent function module/special function module in 3 di
g
its
In case of X/Y0A0
ยทยทยทยท
X/Y0A0
Designation: 0A
(2) Program examples
The following shows the two program examples, one of which uses the intelligent
function module device and the other of which uses the TO instructions, when
writing "9001" to the buffer memory (address: 1500) for one axis positioning start
No. of the QD75D4 positioning module (X/X0A0).
When using the intelligent
function module device
When using the TO instructions
X0
MOV K9001 G1500
U0A\
T0 H0A K1500 D0 K1
X0
MOV K9001 D0
Figure App.4.1 Examples of data write to the buffer memory
(3) Processing speed
The following describes the processing speed by the intelligence function module
direct device.
(a) When reading and writing, the processing speed is equivalent to the
"processing speed of the FROM/TO instructions. (For example, in the case of
"DMOV U0A
G800 D0".)
(b) When performing read operation and other operations together by one
instruction, the processing speed is the total speed of the "processing speed
by FROM/TO instructions" and the "instruction processing speed". (For
example, in the case of "D/U0A
G800 K10000 D10".)